{"product_id":"gravity-analog-ch4-gas-sensor-mq4-for-arduino","title":"Gravity: Analog CH4 Gas Sensor (MQ4) For Arduino","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis is an Arduino CH4 gas sensor.  It uses MQ4 probe which is able to detect natural gas, CH4. It is less sensitivity in detecting \u003cspan\u003e alcohol, cooking fumes, and cigarette smoke.\u003c\/span\u003e\u003cbr\u003eThe sensitivity can be adjusted by the potentiometer. The output is proportional to the density of gas. You can use analog reading to read the data from this sensor. \u003c\/p\u003e\n\u003cp\u003eTo ease the difficulty of using this sensor,  a Gravity Interface is adapted to allow plug\u0026amp;play.  The Arduino IO expansion shield is the best match for this senor connecting to your Arduino microcontroller\u003cspan\u003e. \u003c\/span\u003e \u003c\/p\u003e\n\u003cp\u003eImprovement List\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStandard assembling structure (Times-of-5mm Center distance between two 3mm(0.12\") mounting holes)\u003c\/li\u003e\n\u003cli\u003eEasily recognitive interfaces of sensors (\"A\" for analog and \"D\" for digital)\u003c\/li\u003e\n\u003cli\u003eIcons to simplely illustrate sensor function \u003c\/li\u003e\n\u003cli\u003eHigh quality connector\u003c\/li\u003e\n\u003cli\u003eImmersion gold surface\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower supply: 5V\u003c\/li\u003e\n\u003cli\u003eInterface type: Analog\u003c\/li\u003e\n\u003cli\u003ePin Definition:  1-Output  2-GND  3-VCC\u003c\/li\u003e\n\u003cli\u003eHigh sensitivity to CH4，Natural gas\u003c\/li\u003e\n\u003cli\u003eSmall sensitivity to alcohol, smoke\u003c\/li\u003e\n\u003cli\u003eFast response\u003c\/li\u003e\n\u003cli\u003eStable and long life\u003c\/li\u003e\n\u003cli\u003eSimple drive circuit\u003c\/li\u003e\n\u003cli\u003eSize: 40x20mm(1.57\"x0.79\")\u003c\/li\u003e\n\u003cli\u003ePin Definition: 1-Output 2-VCC 3-GND\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eArduino CH4 Gas sensor (MQ4) x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0129\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67578124075085,"sku":"E34011-001","price":19.64,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E34011-win1.jpg?v=1791286806","url":"https:\/\/www.mlab.com.au\/products\/gravity-analog-ch4-gas-sensor-mq4-for-arduino","provider":"MLAB","version":"1.0","type":"link"}