{"product_id":"2pcs-mq-2-mq-3-mq-4-mq-5-mq-6-mq-7-mq-8-mq-9-mq-135-sensor-detects-smoke-methane-liquid-gas-sensor-module-arduino","title":"2PCS MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135 Sensor Detects Smoke methane liquid gas sensor module Arduino","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eQUANXINFA\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\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\n\u003cdiv\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135 Sensor Module\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eSlide down to see the introduction:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eGas sensor 9 types:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ-2 Smoke sensor\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ-3 Alcohol sensor\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ-4 methane sensor\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ-5 LPG natural gas city gas sensor\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ-6 isobutane propane sensor\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ-7 carbon monoxide sensor\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ-8 Hydrogen sensor\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ-9 Carbon monoxide combustible gas sensor\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ-135 Air quality detection sensor\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ2:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e     (Gas leak monitoring devices for homes and factories, suitable for detection of liquefied gases, butane, propane, methane, alcohol, hydrogen, fumes, etc.)\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003c\/div\u003e\n\u003cul style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;list-style:disc;box-sizing:border-box\"\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eGas: smoke\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eDetection range: 300 to 10000ppmm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eCharacteristic gas: 1000ppmm isobutane\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eSensitivity: R in air\/Rin typical gas≥5\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eSensitive body resistance: 1KΩ to 20KΩ in 50ppm toluene\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eResponse time: ≤10s\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eRecovery time: ≤30s\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eHeating resistance: 31Ω±3Ω\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eHeating current: ≤180mA\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eHeating voltage: 5.0V ± 0.2V\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eHeating power: ≤900mW\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eMeasuring voltage: ≤24V\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ3:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e   Used for post-drink supervision and detection of motor vehicles and other risky workers and detection of ethanol vapor in other places.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eSpecification:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;list-style:disc;box-sizing:border-box\"\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eGas: Alcohol (ethanol)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eDetection range: 10 ~ 1000ppm alcohol\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eCharacteristic gas: 125ppm alcohol\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eSensitivity: R in air\/Rin typical gas≥5\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eSensitive body resistance: 1 ~ 20KΩ in air\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eResponse time ≤ 10s (70% Response)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eRecovery time ≤ 30s (70% Response)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eHeating resistance: 31Ω±3Ω\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eHeating current ≤180mA\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eHeating voltage: 5.0V ± 0.2V\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eHeating power ≤900mW\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eMeasuring voltage ≤24V\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cspan style=\"background-color:rgb(252, 220, 0);color:rgb(0, 0, 0);font-size:28px\"\u003e\u003cspan style=\"background-color:rgb(252, 220, 0);color:rgb(0, 0, 0)\"\u003e\u003cspan style=\"background-color:rgb(252, 220, 0);font-size:28px\"\u003e\u003cspan style=\"background-color:rgb(252, 220, 0);font-size:18px\"\u003eMQ-4 :\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cdiv style=\"font-family:arial;font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(0, 0, 0);background-color:rgb(255, 255, 255);border-bottom:0px;border-left:0px;border-right:0px;border-top:0px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\" align=\"start\"\u003e\u003cspan style=\"background-color:rgb(255, 255, 255);color:rgb(0, 0, 0)\"\u003e\u003cspan style=\"background-color:rgb(255, 255, 255);font-size:18px\"\u003e\u003cspan style=\"background-color:rgb(255, 255, 255)\"\u003e\u003cspan style=\"background-color:rgb(255, 255, 255);font-size:16px\"\u003e\u003cspan style=\"background-color:rgb(255, 255, 255);color:rgb(0, 0, 0);font-size:28px\"\u003eMQ-4 gas sensor sensitive material used in clean air conductivity is lower tin dioxide (SnO2). When the sensor is present in the environment in which the combustible gas, the sensor's conductivity increases with the concentration of combustible gases in air increases. Using a simple circuit can be converted to the change in conductivity of the gas concentration with the corresponding output signal. MQ-4 methane gas sensor for high sensitivity, propane, butane and has a good sensitivity. The sensor can detect a variety of flammable gases, especially natural gas, is a low-cost sensors for a variety of applications.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv style=\"font-family:arial;font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(0, 0, 0);background-color:rgb(255, 255, 255);border-bottom:0px;border-left:0px;border-right:0px;border-top:0px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\" align=\"start\"\u003e\u003c\/div\u003e\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ5:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e    Gas leakage monitoring device for home and factory, suitable for detection of liquefied gas, butane, propane, methane, hydrogen, artificial gas, etc.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;list-style:disc;box-sizing:border-box\"\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eWide range of detection\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eHigh sensitivity\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eFast response recovery\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eExcellent stability\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003elong life\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eSimple drive circuit\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003especification\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eApplicable gases: liquefied gas, methane, gas\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eDetection range: 300 ~ 10000ppm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eCharacteristic gas: 1000ppm isobutane\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eSensitivity: R in air\/R in typical gas≥5\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eSensitive body resistance: 1KΩ～20KΩ in 2000ppm isobutane\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eResponse time: ≤10s\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eRecovery time: ≤30s\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eHeating resistance: 31Ω±3Ω\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eHeating current: ≤180mA\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eHeating voltage: 5.0V ± 0.2V\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eHeating power: ≤900mW\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eMeasuring voltage: ≤24V\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003e\u003cspan style=\"font-size:28px\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style=\"font-family:Arial, Helvetica, sans-serif\"\u003e\u003cspan style='font-size:14px;font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;outline-width:0px;padding-bottom:0px;font-style:normal;padding-top:0px;outline-style:none;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;outline-color:invert;padding-right:0px;background-color:#FFFFFF;text-indent:0px;-webkit-tap-highlight-color:transparent;-webkit-text-stroke-width:0px;font-variant-ligatures:normal;font-variant-caps:normal;text-decoration-style:initial;text-decoration-color:initial;\"'\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cspan\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:14px;font-family:arial\"\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:28px\"\u003eMQ-6\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:14px;font-family:arial\"\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:28px\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-size:14px;font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;outline-width:0px;padding-bottom:0px;font-style:normal;padding-top:0px;outline-style:none;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;outline-color:invert;padding-right:0px;background-color:#FFFFFF;text-indent:0px;-webkit-tap-highlight-color:transparent;-webkit-text-stroke-width:0px;font-variant-ligatures:normal;font-variant-caps:normal;text-decoration-style:initial;text-decoration-color:initial;\"'\u003e\u003cspan style=\"font-family:Arial, Helvetica, sans-serif\"\u003e\u003cbr\u003eSensitive material of MQ-6 gas sensor is SnO2, which with lower conductivity in clean air. When the target flammable gas exists, the sensor's conductivity gets higher along with the gas concentration rising. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit.\u003cbr\u003eMQ-6 gas sensor can detect kinds of flammable gases, especially has high sensitivity to LPG (propane). It is a kind of low-cost sensor for many applications. \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ-7:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e          The gas sensing material used in the MQ-7 gas sensor is tin dioxide (SnO2) with lower conductivity in clean air. The low-temperature (1.5V heating) is used to detect carbon monoxide by high-temperature cycle detection method. The conductivity of the sensor increases with the increase of the concentration of carbon monoxide gas in the air, and the high-temperature (5.0V heating) cleans the stray gas adsorbed at low temperature. A simple circuit can be used to convert the change in conductivity into an output signal corresponding to the gas concentration.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\u003c\/div\u003e\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e        The MQ-7 gas sensor is highly sensitive to carbon monoxide. This sensor detects a wide range of carbon monoxide-containing gases and is a low-cost sensor for a variety of applications.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\u003cspan style=\"background-color:rgb(252, 220, 0);color:rgb(0, 0, 0)\"\u003e\u003cspan style=\"background-color:rgb(252, 220, 0);color:rgb(0, 0, 0);font-size:28px\"\u003eMQ-8：\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;outline-width:0px;padding-bottom:0px;font-style:normal;padding-top:0px;outline-style:none;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;outline-color:invert;padding-right:0px;background-color:#FFFFFF;text-indent:0px;-webkit-tap-highlight-color:transparent;-webkit-text-stroke-width:0px;font-variant-ligatures:normal;font-variant-caps:normal;text-decoration-style:initial;text-decoration-color:initial;\";font-size:14px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box'\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:28px\"\u003e\u003cspan style=\"font-size:18px\"\u003eElectrical performance:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;outline-width:0px;padding-bottom:0px;font-style:normal;padding-top:0px;outline-style:none;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;outline-color:invert;padding-right:0px;background-color:#FFFFFF;text-indent:0px;-webkit-tap-highlight-color:transparent;-webkit-text-stroke-width:0px;font-variant-ligatures:normal;font-variant-caps:normal;text-decoration-style:initial;text-decoration-color:initial;\";font-size:14px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box'\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:28px\"\u003e\u003cspan style=\"font-size:18px\"\u003eInput voltage: DC5V power consumption (current): 150mA\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;outline-width:0px;padding-bottom:0px;font-style:normal;padding-top:0px;outline-style:none;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;outline-color:invert;padding-right:0px;background-color:#FFFFFF;text-indent:0px;-webkit-tap-highlight-color:transparent;-webkit-text-stroke-width:0px;font-variant-ligatures:normal;font-variant-caps:normal;text-decoration-style:initial;text-decoration-color:initial;\";font-size:14px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box'\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:28px\"\u003e\u003cspan style=\"font-size:18px\"\u003eDO output: TTL digits 0 and 1 (0.1 and 5V)\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;outline-width:0px;padding-bottom:0px;font-style:normal;padding-top:0px;outline-style:none;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;outline-color:invert;padding-right:0px;background-color:#FFFFFF;text-indent:0px;-webkit-tap-highlight-color:transparent;-webkit-text-stroke-width:0px;font-variant-ligatures:normal;font-variant-caps:normal;text-decoration-style:initial;text-decoration-color:initial;\";font-size:14px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box'\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:28px\"\u003e\u003cspan style=\"font-size:18px\"\u003eAO output: 0.1-0.3V (relatively pollution-free), the maximum concentration voltage is about 4V\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;outline-width:0px;padding-bottom:0px;font-style:normal;padding-top:0px;outline-style:none;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;outline-color:invert;padding-right:0px;background-color:#FFFFFF;text-indent:0px;-webkit-tap-highlight-color:transparent;-webkit-text-stroke-width:0px;font-variant-ligatures:normal;font-variant-caps:normal;text-decoration-style:initial;text-decoration-color:initial;\";font-size:14px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box'\u003e\u003c\/div\u003e\n\u003cp style=\"font-family:verdana, arial, helvetica, sans-serif;font-size:14px;font-weight:400;letter-spacing:normal;line-height:14px;text-align:start;white-space:normal;color:rgb(0, 0, 0);background-color:rgb(255, 255, 255);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" align=\"start\"\u003e\u003cstrong\u003e\u003cspan style=\"background-color:rgb(252, 220, 0);font-family:tahoma, arial\"\u003e\u003cspan style=\"background-color:rgb(252, 220, 0)\"\u003e\u003cspan style='background-color:rgb(252, 220, 0);font-size:14px;font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;outline-width:0px;padding-bottom:0px;font-style:normal;padding-top:0px;outline-style:none;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;outline-color:invert;padding-right:0px;background-color:#FFFFFF;text-indent:0px;-webkit-tap-highlight-color:transparent;-webkit-text-stroke-width:0px;font-variant-ligatures:normal;font-variant-caps:normal;text-decoration-style:initial;text-decoration-color:initial;\"'\u003e\u003cspan style=\"background-color:rgb(252, 220, 0);color:rgb(0, 0, 0)\"\u003e\u003cspan style=\"background-color:rgb(252, 220, 0);color:rgb(0, 0, 0);font-size:28px\"\u003e\u003cspan style=\"background-color:rgb(252, 220, 0);font-family:Arial, Helvetica, sans-serif\"\u003e\u003cspan style=\"background-color:rgb(252, 220, 0);font-size:16px\"\u003e\u003cspan style=\"background-color:rgb(252, 220, 0);font-size:26px\"\u003e\u003cspan style=\"background-color:rgb(252, 220, 0);font-size:18px\"\u003eMQ-9:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"font-family:verdana, arial, helvetica, sans-serif;font-size:16px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(0, 0, 0);background-color:rgb(255, 255, 255);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\" align=\"start\"\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:28px\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-size:14px;font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;outline-width:0px;padding-bottom:0px;font-style:normal;padding-top:0px;outline-style:none;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;outline-color:invert;padding-right:0px;background-color:#FFFFFF;text-indent:0px;-webkit-tap-highlight-color:transparent;-webkit-text-stroke-width:0px;font-variant-ligatures:normal;font-variant-caps:normal;text-decoration-style:initial;text-decoration-color:initial;\"'\u003e\u003cspan style=\"font-family:Arial, Helvetica, sans-serif\"\u003eSensitive material MQ-9 gas sensor is used to clean the air in the lower conductivity of tin dioxide (SnO2). Detection method using low temperature cycling (1.5V heating ) to detect carbon monoxide, conductivity sensors with carbon monoxide in the air increased with increasing gas concentration , spurious adsorption at high temperatures (5.0V heating ) detection of combustible gases methane, propane and cryogenic cleaning gases. Simple circuit can be used to change the conductivity , concentration of the gas is converted to the corresponding output signal. MQ-9 high gas sensor for carbon monoxide, methane , liquefied petroleum gas sensitivity , the sensor can detect a variety of gases containing carbon monoxide and flammable , is a low-cost sensors for a variety of applications .\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ135: \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e          The gas sensitive material used in the MQ135 gas sensor is tin dioxide (SnO2) with lower conductivity in clean air. When there is a polluting gas in the environment where the sensor is located, the conductivity of the sensor increases as the concentration of the polluting gas in the air increases. The change in conductivity can be converted to an output signal corresponding to the gas concentration using a simple circuit.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003e          The MQ135 gas sensor is highly sensitive to ammonia, sulfides, and benzene vapors, and is ideal for monitoring smoke and other harmful gases. This sensor detects a wide range of harmful gases and is a low-cost sensor for a wide range of applications.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eCharacteristics:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\u003cul style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;list-style:disc;box-sizing:border-box\"\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eGood sensitivity to harmful gases over a wide range of concentrations\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eHigh sensitivity to ammonia, sulfide, benzene, etc.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eLong life, low cost\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eSimple drive circuit\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box' align=\"start\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eApplication:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#000000;padding-bottom:0px;font-style:normal;padding-top:0px;padding-left:0px;orphans:2;widows:2;margin:0px;letter-spacing:normal;padding-right:0px;background-color:#FFFFFF;text-indent:0px;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;text-decoration-thickness:initial;margin-block:1em;margin-inline:0px;padding-inline-start:40px;\";font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;list-style:disc;box-sizing:border-box' align=\"start\"\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eHousehold air pollution alarm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003eIndustrial air pollution alarm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"padding-bottom:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;\"'\u003ePortable air pollution detector\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv style=\"font-family:arial;font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(0, 0, 0);background-color:rgb(255, 255, 255);border-bottom:0px;border-left:0px;border-right:0px;border-top:0px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\" align=\"start\"\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(255, 0, 0);font-size:16pt;font-family:\"Segoe UI\"'\u003eDue to too many models, the model can not be found in the store, please contact our customer service, we will provide you with the best price and quality.\u003c\/span\u003e\u003c\/div\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003e1. About us: We are a wholesale and retail as one of the professional chip suppliers, we have professional chip knowledge and strong stock, can provide you with all aspects of the chip supporting needs, we have a good reputation, integrity management has been our sales philosophy.\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003e2. All the commodities for sale are basically in stock, and we can ship them to you within 1-3 working days.\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003eWhat's more, you will get high quality products at the lowest price.\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003e3. Feel free to send us your RFQ or BOM list and we will provide you with the best price!\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003eYou can leave us a message or send us an email, we will get back to you as soon as possible!\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003e4. If you want to know more product data sheet, please contact us and we will provide it for you!\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003eShipping \u0026amp; Payment\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003e1. We can ship items anywhere in the world. We have shipped to many\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003eE.g. Russia\/Brazil etc.\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003e1. We support multiple shipping methods, DHL,EMS, China Post,Aliexpress standard shipping,ePacket... Can fully meet the different needs of buyers.\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003eRemarks (please read carefully before placing an order) :\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003eThe tracking number of China Post ordinary small bag Plus can only check whether the goods have left China.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003eNo more information is available after leaving China.\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003eIf you are unable to accept a shipment in your country without tracking information, do not select it.\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003eYou can choose China Post Registered airmail or other Courier that has complete tracking information.\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003e2. Payment is safe and convenient, you can use credit card (VISA or Mastercard) or other means of online payment to me\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003eReturn policy\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003e3 Shipping costs do not include any import taxes, and buyers are responsible for duties. Thanks for understanding!\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003eFeedback details:\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003eAs your feedback is very important to our development, if you are satisfied with our products and services, we sincerely invite you to leave us a positive feedback.\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003e2. Our program will give you the same feedback after your positive feedback. 3. If you have doubts or dissatisfaction with the product, please contact us before leaving a positive or negative review.\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003eWe will do our best to resolve the issue. Thank you so much!\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.5pt;font-family:\"Times New Roman\"'\u003eI firmly believe that we will be your best partner!\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Yoeruyo","offers":[{"title":"MQ-5 Sensor","offer_id":55441278271787,"sku":"14:175#MQ-5 Sensor","price":10.58,"currency_code":"USD","in_stock":false},{"title":"MQ-4 Sensor","offer_id":55441278304555,"sku":"14:173#MQ-4 Sensor","price":10.58,"currency_code":"USD","in_stock":false},{"title":"MQ-7 Sensor","offer_id":55441278337323,"sku":"14:366#MQ-7 Sensor","price":12.38,"currency_code":"USD","in_stock":false},{"title":"MQ-6 Sensor","offer_id":55441278370091,"sku":"14:193#MQ-6 Sensor","price":10.58,"currency_code":"USD","in_stock":false},{"title":"MQ-3 Sensor","offer_id":55441278402859,"sku":"14:29#MQ-3 Sensor","price":12.38,"currency_code":"USD","in_stock":false},{"title":"MQ-2 Sensor","offer_id":55441278435627,"sku":"14:10#MQ-2 Sensor","price":10.58,"currency_code":"USD","in_stock":false},{"title":"MQ-9 plastic","offer_id":55441278468395,"sku":"14:496#MQ-9 plastic","price":17.01,"currency_code":"USD","in_stock":false},{"title":"MQ-8 Sensor","offer_id":55441278501163,"sku":"14:365458#MQ-8 Sensor","price":10.58,"currency_code":"USD","in_stock":false},{"title":"MQ-135 Sensor","offer_id":55441278533931,"sku":"14:200005536#MQ-135 Sensor","price":12.38,"currency_code":"USD","in_stock":false},{"title":"MQ-9  metal case","offer_id":55441278566699,"sku":"14:100013777#MQ-9  metal case","price":12.38,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/S935cc4e55c8149caa94e27f820513a52Z.webp?v=1788751176","url":"https:\/\/yoeruyo.com\/products\/2pcs-mq-2-mq-3-mq-4-mq-5-mq-6-mq-7-mq-8-mq-9-mq-135-sensor-detects-smoke-methane-liquid-gas-sensor-module-arduino","provider":"Yoeruyo","version":"1.0","type":"link"}