{"product_id":"high-accuracy-mq-4-methane-gas-sensor-analog-digital-dual-output-with-enclosure-ph2-0-for-arduino-esp32-microbit-raspberry-pi","title":"High Accuracy MQ-4 Methane Gas Sensor Analog \u0026 Digital Dual Output with Enclosure PH2.0 for Arduino ESP32 Microbit Raspberry Pi","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNullLab\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\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\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S9230e710670940cd93ff112bfdc779bes.png\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(252, 220, 0);font-size:22px;font-family:\"times new roman\", times, serif'\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe gas sensing material used in MQ-4 natural gas sensors is tin dioxide (SnO2) with low conductivity in clean air. When there is combustible gas in the environment where the sensor is located, the conductivity of the sensor increases with the increase of combustible gas concentration in the air. The change in conductivity can be converted into an output signal corresponding to the gas concentration using a simple circuit. The MQ-4 natural gas detection sensor has high sensitivity to methane and good sensitivity to propane and butane. This sensor can detect various gases, especially natural gas, and is a low-cost sensor suitable for multiple applications.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(252, 220, 0);font-size:22px;font-family:\"times new roman\", times, serif'\u003e\u003cstrong\u003eSchematic diagram\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/emakefun.github.io\/emakefun-docsify\/zh-cn\/ph2.0_sensors\/sensors\/mq_gas_sensor\/picture\/mq_gas_sensor_schematic.png\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(252, 220, 0);font-size:22px;font-family:\"times new roman\", times, serif'\u003e\u003cstrong\u003eModule parameters\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable style='border-collapse:collapse;font-family:\"Source Sans Pro\", \"Helvetica Neue\", Arial, sans-serif;font-size:15px;text-align:start;color:rgb(52, 73, 94);background-color:rgb(255, 255, 255);width:930px' align=\"start\"\u003e\n \u003ctbody\u003e\n  \u003ctr\u003e\n   \u003ctd style=\"text-align:center;border:1px solid rgb(221, 221, 221);padding:6px 13px\" align=\"center\"\u003e\u003cp\u003ePin name\u003c\/p\u003e\u003c\/td\u003e\n   \u003ctd style=\"text-align:center;border:1px solid rgb(221, 221, 221);padding:6px 13px\" align=\"center\"\u003e\u003cp\u003edescription\u003c\/p\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003ctbody\u003e\n  \u003ctr\u003e\n   \u003ctd style=\"text-align:center;border:1px solid rgb(221, 221, 221);padding:6px 13px\" align=\"center\"\u003e\u003cp\u003eG\u003c\/p\u003e\u003c\/td\u003e\n   \u003ctd style=\"text-align:center;border:1px solid rgb(221, 221, 221);padding:6px 13px\" align=\"center\"\u003e\u003cp\u003eGND\u003c\/p\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color:rgb(248, 248, 248)\"\u003e\n   \u003ctd style=\"text-align:center;border:1px solid rgb(221, 221, 221);padding:6px 13px\" align=\"center\"\u003e\u003cp\u003eV\u003c\/p\u003e\u003c\/td\u003e\n   \u003ctd style=\"text-align:center;border:1px solid rgb(221, 221, 221);padding:6px 13px\" align=\"center\"\u003e\u003cp\u003eVCC\u003c\/p\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n   \u003ctd style=\"text-align:center;border:1px solid rgb(221, 221, 221);padding:6px 13px\" align=\"center\"\u003e\u003cp\u003eA\u003c\/p\u003e\u003c\/td\u003e\n   \u003ctd style=\"text-align:center;border:1px solid rgb(221, 221, 221);padding:6px 13px\" align=\"center\"\u003e\u003cp\u003eanalog signal pin\u003c\/p\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color:rgb(248, 248, 248)\"\u003e\n   \u003ctd style=\"text-align:center;border:1px solid rgb(221, 221, 221);padding:6px 13px\" align=\"center\"\u003e\u003cp\u003eD\u003c\/p\u003e\u003c\/td\u003e\n   \u003ctd style=\"text-align:center;border:1px solid rgb(221, 221, 221);padding:6px 13px\" align=\"center\"\u003e\u003cp\u003edigital signal pin\u003c\/p\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul\u003e\n \u003cli\u003e\u003cp\u003eSupply voltage: 3V3\/5V\u003c\/p\u003e\u003c\/li\u003e\n \u003cli\u003e\u003cp\u003eConnection method: 4PIN anti reverse DuPont wire\u003c\/p\u003e\u003c\/li\u003e\n \u003cli\u003e\u003cp\u003eModule size: 38.4 x 22.4 mm\u003c\/p\u003e\u003c\/li\u003e\n \u003cli\u003e\u003cp\u003eInstallation method: M4 screws compatible with Lego socket for fixation\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S6b786e2256fd4380b4324972ac0c9699m.png\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sccce89e8ff154804b54576141a003cf6r.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S392d642c7bc24041ae3c427dc98d61e5X.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Se4cf8f189d92497bb3db87e5441e6d972.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sebcdb3c2eeb8469d8fd4871f38b6fea5A.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S6ed870b3b53f41928fd7fb03412412402.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sdcb8348e93e540bbae9eace468c0a36cx.png\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S7a39d1d68859452bbc2409eab960e7d3L.png\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sf524379dac4b44de92ba72cd31e295a25.png\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S37398f3a37eb47a498b24e060ba11c82M.png\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S82a8950f98d74552aef78abd35f0e4070.png\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"Yoeruyo","offers":[{"title":"MQ4 with case","offer_id":55441069080875,"sku":"14:29#MQ4 with case","price":31.32,"currency_code":"USD","in_stock":true},{"title":"MQ4 gas sensor","offer_id":55441069113643,"sku":"14:10#MQ4 gas sensor","price":30.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/S1b0e302125a54851875c13c890e9a7feR.webp?v=1788748847","url":"https:\/\/yoeruyo.com\/products\/high-accuracy-mq-4-methane-gas-sensor-analog-digital-dual-output-with-enclosure-ph2-0-for-arduino-esp32-microbit-raspberry-pi","provider":"Yoeruyo","version":"1.0","type":"link"}