{"product_id":"1pcs-gas-sensor-mq-2-mq-3-mq-4-mq-5-mq-6-mq-7-mq-8-mq-9-detection-smoke-methane-liquefied-gas-sensor-module","title":"1PCS Gas Sensor MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 Detection Smoke methane liquefied Gas Sensor Module","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNONE\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMaterial\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMixture\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOutput\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eAnalog Sensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eTheory\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eResistance Sensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eGas Sensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eUse\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eGas Sensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv style=\"margin:10px auto 0 !important;display:inline-block !important;max-width:100% !important;\"\u003e\n\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S872b36f7d3ab48a9bba7a36ecf70c1b0n.jpg\" style=\"width:932px !important;\"\u003e\u003cdiv style=\"margin-top:-90.77% !important;\"\u003e\n\u003cdiv style=\"margin-left:0.0% !important;margin-top:0.0% !important;width:20.0% !important; \"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/H29788bff2bee4ccd9654060f71c405e3l.png?width=186\u0026amp;height=282\u0026amp;hash=468\" style=\"width:186px !important;height:282px !important;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-left:20.0% !important;margin-top:-30.26% !important;width:20.0% !important; \"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/H29788bff2bee4ccd9654060f71c405e3l.png?width=186\u0026amp;height=282\u0026amp;hash=468\" style=\"width:186px !important;height:282px !important;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-left:40.0% !important;margin-top:-30.26% !important;width:20.0% !important; \"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/H29788bff2bee4ccd9654060f71c405e3l.png?width=186\u0026amp;height=282\u0026amp;hash=468\" style=\"width:186px !important;height:282px !important;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-left:60.0% !important;margin-top:-30.26% !important;width:20.0% !important; \"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/H29788bff2bee4ccd9654060f71c405e3l.png?width=186\u0026amp;height=282\u0026amp;hash=468\" style=\"width:186px !important;height:282px !important;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-left:80.0% !important;margin-top:-30.26% !important;width:20.0% !important; \"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/H29788bff2bee4ccd9654060f71c405e3l.png?width=186\u0026amp;height=282\u0026amp;hash=468\" style=\"width:186px !important;height:282px !important;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-left:0.0% !important;margin-top:0.0% !important;width:20.0% !important; \"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/H29788bff2bee4ccd9654060f71c405e3l.png?width=186\u0026amp;height=282\u0026amp;hash=468\" style=\"width:186px !important;height:282px !important;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-left:20.0% !important;margin-top:-30.26% !important;width:20.0% !important; \"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/H29788bff2bee4ccd9654060f71c405e3l.png?width=186\u0026amp;height=282\u0026amp;hash=468\" style=\"width:186px !important;height:282px !important;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-left:40.0% !important;margin-top:-30.26% !important;width:20.0% !important; \"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/H29788bff2bee4ccd9654060f71c405e3l.png?width=186\u0026amp;height=282\u0026amp;hash=468\" style=\"width:186px !important;height:282px !important;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-left:60.0% !important;margin-top:-30.26% !important;width:20.0% !important; \"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/H29788bff2bee4ccd9654060f71c405e3l.png?width=186\u0026amp;height=282\u0026amp;hash=468\" style=\"width:186px !important;height:282px !important;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-left:80.0% !important;margin-top:-30.26% !important;width:20.0% !important; \"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/H29788bff2bee4ccd9654060f71c405e3l.png?width=186\u0026amp;height=282\u0026amp;hash=468\" style=\"width:186px !important;height:282px !important;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-left:0.0% !important;margin-top:0.0% !important;width:20.0% !important; \"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/H29788bff2bee4ccd9654060f71c405e3l.png?width=186\u0026amp;height=282\u0026amp;hash=468\" style=\"width:186px !important;height:282px !important;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-left:20.0% !important;margin-top:-30.26% !important;width:20.0% !important; \"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/H29788bff2bee4ccd9654060f71c405e3l.png?width=186\u0026amp;height=282\u0026amp;hash=468\" style=\"width:186px !important;height:282px !important;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-left:40.0% !important;margin-top:-30.26% !important;width:20.0% !important; \"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/H29788bff2bee4ccd9654060f71c405e3l.png?width=186\u0026amp;height=282\u0026amp;hash=468\" style=\"width:186px !important;height:282px !important;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-left:60.0% !important;margin-top:-30.26% !important;width:20.0% !important; \"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/H29788bff2bee4ccd9654060f71c405e3l.png?width=186\u0026amp;height=282\u0026amp;hash=468\" style=\"width:186px !important;height:282px !important;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-left:80.0% !important;margin-top:-30.26% !important;width:20.0% !important; \"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/H29788bff2bee4ccd9654060f71c405e3l.png?width=186\u0026amp;height=282\u0026amp;hash=468\" style=\"width:186px !important;height:282px !important;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:10px auto 0 !important;display:inline-block !important;max-width:100% !important;\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S5e7058274a7f46e08a9837863a94ffebI.jpg\" style=\"width:932px !important;\"\u003e\u003c\/div\u003e\n\u003ch1 style='font-weight: 600; font-size: 27.432px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\n\u003cspan style='color: rgb(15, 17, 21); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, Cantarell, \"Open Sans\", \"Helvetica Neue\", sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;'\u003eThe gas-sensitive material used in the MO gas sensor is tin dioxide (SnO₂), which has low conductivity in clean air. When combustible gases are present in the sensor's environment, the conductivity of the sensor increases with the concentration of the combustible gas in the air. Using a simple circuit, the change in conductivity can be converted into an output signal corresponding to the gas concentration. The MO gas sensor exhibits high sensitivity to sensitive gases such as liquefied petroleum gas, propane, and hydrogen, and is also ideal for detecting natural gas and other combustible vapors. This sensor can detect a variety of combustible gases and is a low-cost sensor suitable for a wide range of applications.\u003c\/span\u003e\u003cbr\u003e \u003cbr\u003e \u003cspan style=\"font-size:20px;\"\u003eComponent external structure\u003cbr\u003e \u003cimg cke-id=\"img44\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S6148b5a5da21441fa0caf9c01c7bc7fd9.jpg?width=1000\u0026amp;height=411\u0026amp;hash=1411\" style=\"width: 1000px; height: 411px;\"\u003e\u003cimg cke-id=\"img45\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S7b210f016e2d44638a1b17d4187a6b0aw.jpg?width=1000\u0026amp;height=1000\u0026amp;hash=2000\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e \n\u003ch1 style='font: 700 24px \/ 34px quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, Cantarell, \"Open Sans\", \"Helvetica Neue\", sans-serif; margin-top: 0px !important; margin-right: 0px; margin-bottom: 16px; margin-left: 0px; color: rgb(15, 17, 21); letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003eProduct Features\u003cbr\u003e \u003cspan style=\"font-size:18px;\"\u003e1.Utilizes a high-quality double-sided board design with power indication and TTL signal output indication.\u003cbr\u003e 2.Features both DO switch signal (TTL) output and A0 analog signal output.\u003cbr\u003e 3.The TTL output active signal is low level (the signal light turns on when the output is low, and it can be directly connected to a microcontroller or relay module).\u003cbr\u003e 4.The analog output voltage increases with higher gas concentration.\u003cbr\u003e 5.Exhibits high sensitivity to methane and natural gas detection.\u003cbr\u003e 6.Equipped with four screw holes for easy positioning.\u003cbr\u003e 7.Product dimensions: 32 (L) × 20 (W) × 22 (H) mm.\u003cbr\u003e 8.Offers long service life and reliable stability.\u003cbr\u003e 9.Provides fast response and recovery characteristics.\u003c\/span\u003e\n\u003c\/h1\u003e \n\u003ch1 style='font-weight: 600; font-size: 27.432px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cimg cke-id=\"img46\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S25953da5a91646c3b6b73c88d37a44b7Q.jpg?width=1000\u0026amp;height=1000\u0026amp;hash=2000\" style=\"width: 1000px; height: 1000px;\"\u003e\u003c\/h1\u003e \n\u003ch1 style='font: 700 24px \/ 34px quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, Cantarell, \"Open Sans\", \"Helvetica Neue\", sans-serif; margin-top: 0px !important; margin-right: 0px; margin-bottom: 16px; margin-left: 0px; color: rgb(15, 17, 21); letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003eProduct Performance\u003cbr\u003e \u003cspan style=\"font-size:16px;\"\u003eInput Voltage: DC 5V\u003cbr\u003e Power Consumption (Current): 150 mA\u003cbr\u003e DO Output: TTL Digital Signals 0 and 1 (0.1 V and 5 V)\u003cbr\u003e AO Output: 0.1–0.3 V (relative to no pollution), approximately 4 V at high concentration\u003c\/span\u003e\u003cbr\u003e \u003cbr\u003e \u003cspan style=\"font-size:16px;\"\u003eFriendly Reminder: After the sensor is powered on, it requires a warm-up period of about 1 minute for the measurement data to stabilize. The sensor heating up is a normal phenomenon due to the internal heating wire. However, if it becomes too hot to touch, this is abnormal.\u003c\/span\u003e\u003cbr\u003e \u003cbr\u003e \u003cspan style=\"font-size:16px;\"\u003eTo connect the smoke sensor module, link its VCC and GND pins to the 5V and GND pins of the development board, respectively. Connect the AO pin of the module to the analog pin A0 of the development board, and the DO pin to digital pin 2 of the development board.\u003c\/span\u003e\u003cbr\u003e \u003cbr\u003e The schematic diagram of the experiment is shown below:\u003c\/h1\u003e \n\u003ch1 style='font-weight: 600; font-size: 27.432px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\n\u003cspan style=\"font-size:20px;\"\u003e\u003cimg cke-id=\"img47\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sd3cd22e137854f828473701882c232adI.jpg?width=1000\u0026amp;height=1000\u0026amp;hash=2000\"\u003e\u003cimg cke-id=\"img48\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sebed3eba5bdd4438af6069dfb5514f35x.jpg?width=1000\u0026amp;height=1000\u0026amp;hash=2000\"\u003e\u003c\/span\u003e\u003cbr\u003e \u003cbr\u003e \u003cbr\u003e MQ-2 Smoke Sensor Module\u003c\/h1\u003e \n\u003cp class=\"ds-markdown-paragraph\" style='margin: 13.716px 0px; font-size: 16.002px; line-height: 28.575px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eParameters:\u003c\/strong\u003e\u003c\/p\u003e \n\u003cul style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eInput Voltage: DC 5V\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003ePower Consumption (Current): 150mA\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eDO Output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTTL digital signal 0 and 1 (0.1V and 5V)\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eAO Output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.1-0.3V (relative to no pollution), high concentration voltage around 4V\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ul\u003e \n\u003chr style='height: 1px; margin: 32px 0px; background: none 0% 0% \/ auto repeat scroll padding-box border-box rgb(229, 229, 229); border: none; display: block; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n\u003cp class=\"ds-markdown-paragraph\" style='margin: 13.716px 0px; font-size: 16.002px; line-height: 28.575px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \n\u003col start=\"1\" style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eHigh-quality double-sided PCB design with power indicator and TTL signal output indicator.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eEquipped with DO TTL switch signal output and AO analog signal output.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eTTL output active signal is low level (signal light turns on when output is low, can be directly connected to a microcontroller or relay module).\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eAnalog output voltage increases with higher gas concentration.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eHigh sensitivity to liquefied gas, natural gas, city gas, and smoke.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eFour screw holes for easy mounting.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eLong service life and reliable stability.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eFast response and recovery characteristics.\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ol\u003e \n\u003cp class=\"ds-markdown-paragraph\" style='margin: 13.716px 0px; font-size: 16.002px; line-height: 28.575px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eWiring:\u003c\/strong\u003e\u003c\/p\u003e \n\u003cul style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eVCC:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eConnect to power supply positive (5V).\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eGND:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eConnect to power supply negative.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eDO:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTTL switch signal output.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eAO:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAnalog signal output.\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ul\u003e \n\u003ch2 style='font-weight: 600; font-size: 22.86px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\n\u003cimg cke-id=\"img42\" data-id=\"ckeditor_img51\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sa2361af104854e0f89acf532c246a350n.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\" style=\"width: 800px; height: 800px;\"\u003e\u003cbr\u003e  \u003c\/h2\u003e \n\u003ch1 style='font-weight: 600; font-size: 27.432px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003eMQ-3 Alcohol Sensor Module\u003c\/h1\u003e \n\u003cp class=\"ds-markdown-paragraph\" style='margin: 13.716px 0px; font-size: 16.002px; line-height: 28.575px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \n\u003col start=\"1\" style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eHigh-quality double-sided PCB design with power indicator and TTL signal output indicator.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eEquipped with DO switch signal (TTL) output and AO analog signal output.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eTTL output active signal is low level (signal light turns on when output is low, can be directly connected to a microcontroller or relay module).\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eAnalog output voltage increases with higher alcohol concentration.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eHigh sensitivity to alcohol detection.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eLong service life and reliable stability.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eFast response and recovery characteristics.\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ol\u003e \n\u003ch2 style='font-weight: 600; font-size: 22.86px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eParameters:\u003c\/strong\u003e\u003c\/h2\u003e \n\u003cul style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eInput Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDC 5V\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003ePower Consumption (Current):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e150mA\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eDO Output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTTL digital signal 0 and 1 (0.1V and 3.3V)\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eAO Output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.1-0.3V (relative to no pollution), high concentration voltage around 4V\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ul\u003e \n\u003cp class=\"ds-markdown-paragraph\" style='margin: 13.716px 0px; font-size: 16.002px; line-height: 28.575px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eWiring:\u003c\/strong\u003e\u003c\/p\u003e \n\u003col start=\"1\" style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eVCC:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eConnect to power supply positive (5V).\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eGND:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eConnect to power supply negative.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eDO:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTTL switch signal output.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eAO:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAnalog signal output.\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ol\u003e \n\u003ch3 style='font-weight: 600; font-size: 18.288px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\n\u003cimg cke-id=\"img43\" data-id=\"ckeditor_img52\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S09ef4733f7594be0856e086c87e0c60ff.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\" style=\"width: 800px; height: 800px;\"\u003e\u003cbr\u003e  \u003c\/h3\u003e \n\u003ch1 style='font-weight: 600; font-size: 27.432px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003eMQ-4 Natural Gas Sensor Module\u003c\/h1\u003e \n\u003cp class=\"ds-markdown-paragraph\" style='margin: 13.716px 0px; font-size: 16.002px; line-height: 28.575px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \n\u003col start=\"1\" style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eHigh-quality double-sided PCB design with power indicator and TTL signal output indicator.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eEquipped with DO switch signal (TTL) output and AO analog signal output.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eTTL active output signal is low level (signal light turns on when output is low, can be directly connected to a microcontroller or relay module).\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eAnalog output voltage increases with higher gas concentration.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eHigh sensitivity to methane and natural gas detection.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eLong service life and reliable stability.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eFast response and recovery characteristics.\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ol\u003e \n\u003ch2 style='font-weight: 600; font-size: 22.86px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eParameters:\u003c\/strong\u003e\u003c\/h2\u003e \n\u003cul style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eInput Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDC 5V\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003ePower Consumption (Current):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e150mA\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eDO Output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTTL digital signal 0 and 1 (0.1V and 5V)\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eAO Output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.1-0.3V (relative to no pollution), high concentration voltage around 4V\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ul\u003e \n\u003ch3 style='font-weight: 600; font-size: 18.288px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\n\u003cimg cke-id=\"img-7-49\" data-id=\"ckeditor_img53\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sd39a4a8eb2eb40bdba41e2937b1376130.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\" style=\"width: 800px; height: 800px;\"\u003e\u003cbr\u003e  \u003c\/h3\u003e \n\u003ch1 style='font-weight: 600; font-size: 27.432px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003eMQ-5 Liquefied Petroleum Gas Sensor Module\u003c\/h1\u003e \n\u003cp class=\"ds-markdown-paragraph\" style='margin: 13.716px 0px; font-size: 16.002px; line-height: 28.575px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \n\u003col start=\"1\" style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eHigh-quality double-sided PCB design with power indicator and TTL signal output indicator.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eEquipped with DO switch signal (TTL) output and AO analog signal output.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eTTL active output signal is low level (signal light turns on when output is low, can be directly connected to microcontroller or relay module).\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eAnalog output voltage increases with higher gas concentration.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eHigh sensitivity to coal gas and natural gas detection.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eLong service life and reliable stability.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eFast response and recovery characteristics.\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ol\u003e \n\u003chr style='height: 1px; margin: 32px 0px; background: none 0% 0% \/ auto repeat scroll padding-box border-box rgb(229, 229, 229); border: none; display: block; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n\u003ch2 style='font-weight: 600; font-size: 22.86px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eParameters:\u003c\/strong\u003e\u003c\/h2\u003e \n\u003cul style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eInput Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDC 5V\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003ePower Consumption (Current):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e150mA\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eDO Output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTTL digital signal 0 and 1 (0.1V and 5V)\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eAO Output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.1-0.3V (relative to no pollution), high concentration voltage around 4V\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ul\u003e \n\u003ch3 style='font-weight: 600; font-size: 18.288px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\n\u003cimg cke-id=\"img-8-50\" data-id=\"ckeditor_img54\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sf56db40d99bc46d3bf40f30f5ca8f383T.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\" style=\"width: 800px; height: 800px;\"\u003e\u003cbr\u003e  \u003c\/h3\u003e \n\u003ch1 style='font-weight: 600; font-size: 27.432px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003eMQ-6 Propane Gas Sensor Module\u003c\/h1\u003e \n\u003cp class=\"ds-markdown-paragraph\" style='margin: 13.716px 0px; font-size: 16.002px; line-height: 28.575px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \n\u003col start=\"1\" style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003ePremium double-layer PCB design with power indicator and TTL signal output indicator\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eFeatures DO digital switch output (TTL) and AO analog signal output\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eActive-low TTL output (signal LED illuminates at low level, compatible with MCUs and relay modules)\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eAnalog voltage output (0-5V) proportional to gas concentration\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eHigh sensitivity to propane, butane, LPG and LNG detection\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eExtended operational lifespan with reliable stability\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eRapid response and recovery characteristics\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ol\u003e \n\u003cp class=\"ds-markdown-paragraph\" style='margin: 13.716px 0px; font-size: 16.002px; line-height: 28.575px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e \n\u003cul style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eOperating Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDC 5V\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eCurrent Consumption:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e150mA\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eDO Output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTTL digital signal (0.1V and 5V)\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eAO Output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.1-0.3V (ambient level), up to ~4V at high concentrations\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ul\u003e \n\u003ch2 style='font-weight: 600; font-size: 22.86px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\n\u003cimg cke-id=\"img-9-51\" data-id=\"ckeditor_img55\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S789ea97118b0451082d037110a48611dm.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\" style=\"width: 800px; height: 800px;\"\u003e\u003cbr\u003e  \u003c\/h2\u003e \n\u003ch1 style='font-weight: 600; font-size: 27.432px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003eMQ-7 Carbon Monoxide Sensor Module\u003c\/h1\u003e \n\u003cp class=\"ds-markdown-paragraph\" style='margin: 13.716px 0px; font-size: 16.002px; line-height: 28.575px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e \n\u003col start=\"1\" style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eHigh-quality dual-layer PCB design with power indicator and TTL signal output indicator\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eProvides both digital (DO) TTL output and analog (AO) voltage output\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eActive-low TTL logic (signal LED illuminates when output is low, compatible with MCUs and relay modules)\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eAnalog output voltage increases proportionally with gas concentration\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eOptimized sensitivity for carbon monoxide (CO) detection\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eLong operational lifespan with stable performance\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eFast response and recovery times\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ol\u003e \n\u003cp class=\"ds-markdown-paragraph\" style='margin: 13.716px 0px; font-size: 16.002px; line-height: 28.575px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e \n\u003cul style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eOperating Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDC 5V ±10%\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eCurrent Consumption:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e150mA (typical)\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eDigital Output (DO):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTTL compatible (0.1V low \/ 5V high)\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003e\u003cstrong style=\"font-weight: 600;\"\u003eAnalog Output (AO):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.1-0.3V (clean air), up to ~4V at high concentrations\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ul\u003e \n\u003ch2 style='font-weight: 600; font-size: 22.86px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\n\u003cimg cke-id=\"img-10-52\" data-id=\"ckeditor_img56\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S6000081aadbc47509eb7a8163d45693ap.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\" style=\"width: 800px; height: 800px;\"\u003e\u003cbr\u003e  \u003c\/h2\u003e \n\u003ch1 style='font-weight: 600; font-size: 27.432px; line-height: 1.5; margin-top: 0px !important; margin-right: 0px; margin-bottom: 13.716px; margin-left: 0px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003eMQ-8 Hydrogen Gas Sensor Module\u003c\/h1\u003e \n\u003cp class=\"ds-markdown-paragraph\" style='margin: 13.716px 0px; font-size: 16.002px; line-height: 28.575px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eDescription:\u003c\/strong\u003e\u003c\/p\u003e \n\u003col start=\"1\" style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eUtilizes high-quality dual-panel design with power indicator and TTL signal output indicator.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eFeatures a digital output (TTL) switch signal and an analog output signal.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eThe TTL output effective signal is low level. (When the output is low level, the signal light turns on, and it can be directly connected to a microcontroller or relay module.)\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eThe analog output voltage increases with higher gas concentration.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eExhibits good sensitivity to hydrogen detection.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eOffers long service life and reliable stability.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eProvides fast response and recovery characteristics.\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ol\u003e \n\u003cp class=\"ds-markdown-paragraph\" style='margin: 13.716px 0px; font-size: 16.002px; line-height: 28.575px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e \n\u003cul style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eInput Voltage: DC 5V\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003ePower Consumption (Current): 150mA\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eDigital Output (DO): TTL digital signal 0 and 1 (0.1V and 5V)\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eAnalog Output (AO): 0.1–0.3V (relative to no pollution), high concentration voltage around 4V\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ul\u003e \n\u003cp class=\"ds-markdown-paragraph\" style='margin: 13.716px 0px; font-size: 16.002px; line-height: 28.575px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cimg cke-id=\"img-11-53\" data-id=\"ckeditor_img57\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sbde4d65c50924eefa7486744e8cf60faf.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\" style=\"width: 800px; height: 800px;\"\u003e\u003cbr\u003e  \u003c\/p\u003e \n\u003ch1 style='font-weight: 600; font-size: 27.432px; line-height: 1.5; margin-top: 0px !important; margin-right: 0px; margin-bottom: 13.716px; margin-left: 0px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003eMQ-9 Combustible Gas Sensor Module\u003c\/h1\u003e \n\u003cp class=\"ds-markdown-paragraph\" style='margin: 13.716px 0px; font-size: 16.002px; line-height: 28.575px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eDescription:\u003c\/strong\u003e\u003c\/p\u003e \n\u003col start=\"1\" style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eUtilizes high-quality dual-panel design with power indicator and TTL signal output indicator.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eFeatures a digital output (TTL) switch signal and an analog output signal.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eThe TTL output effective signal is low level. (When the output is low level, the signal light turns on, and it can be directly connected to a microcontroller or relay module.)\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eThe analog output voltage increases with higher gas concentration.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eExhibits good sensitivity to carbon monoxide detection.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eOffers long service life and reliable stability.\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eProvides fast response and recovery characteristics.\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ol\u003e \n\u003cp class=\"ds-markdown-paragraph\" style='margin: 13.716px 0px; font-size: 16.002px; line-height: 28.575px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong style=\"font-weight: 600;\"\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e \n\u003cul style='margin: 13.716px 0px; padding-left: 27.432px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-size: 16.002px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \n \u003cli\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eInput Voltage: DC 5V\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003ePower Consumption (Current): 150mA\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eDigital Output (DO): TTL digital signal 0 and 1 (0.1V and 5V)\u003c\/p\u003e \u003c\/li\u003e \n \u003cli style=\"margin-top: 4px;\"\u003e \u003cp class=\"ds-markdown-paragraph\" style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px !important; margin-left: 0px; font-size: 16.002px; line-height: 28.575px;\"\u003eAnalog Output (AO): 0.1–0.3V (relative to no pollution), high concentration voltage around 4V\u003c\/p\u003e \u003c\/li\u003e \n\u003c\/ul\u003e \n\u003ch2 style='font-weight: 600; font-size: 22.86px; line-height: 1.5; margin: 18.288px 0px 13.716px; color: rgb(64, 64, 64); font-family: quote-cjk-patch, Inter, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Noto Sans\", Ubuntu, Cantarell, \"Helvetica Neue\", Oxygen, \"Open Sans\", sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cimg cke-id=\"img49\" data-id=\"ckeditor_img58\" referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S4d0165da4ba94513b86a5eaf2c27e131D.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\" style=\"width: 800px; height: 800px;\"\u003e\u003c\/h2\u003e \n\u003cdiv\u003e \n \u003cp style=\"text-align:left;margin:0;\"\u003e \u003c\/p\u003e \n\u003c\/div\u003e\n\u003cdiv style=\"margin:10px auto 0 !important;display:inline-block !important;max-width:100% !important;\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S0fb2dc77ef20417a8a08e21514c45237p.jpg\" style=\"width:932px !important;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"Yoeruyo","offers":[{"title":"MQ-4","offer_id":55437315309867,"sku":"14:173#MQ-4","price":6.62,"currency_code":"USD","in_stock":true},{"title":"MQ-5","offer_id":55437315342635,"sku":"14:175#MQ-5","price":6.62,"currency_code":"USD","in_stock":true},{"title":"MQ-2","offer_id":55437315375403,"sku":"14:10#MQ-2","price":6.62,"currency_code":"USD","in_stock":true},{"title":"MQ-3","offer_id":55437315408171,"sku":"14:29#MQ-3","price":6.62,"currency_code":"USD","in_stock":true},{"title":"MQ-8","offer_id":55437315440939,"sku":"14:496#MQ-8","price":6.62,"currency_code":"USD","in_stock":true},{"title":"MQ-9","offer_id":55437315473707,"sku":"14:365458#MQ-9","price":6.62,"currency_code":"USD","in_stock":true},{"title":"MQ-6","offer_id":55437315506475,"sku":"14:193#MQ-6","price":6.62,"currency_code":"USD","in_stock":true},{"title":"MQ-7","offer_id":55437315539243,"sku":"14:366#MQ-7","price":6.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/S8223e72a86c94b6582abc63d6c176d09Q.webp?v=1788674570","url":"https:\/\/yoeruyo.com\/products\/1pcs-gas-sensor-mq-2-mq-3-mq-4-mq-5-mq-6-mq-7-mq-8-mq-9-detection-smoke-methane-liquefied-gas-sensor-module","provider":"Yoeruyo","version":"1.0","type":"link"}