{"product_id":"mq4-methane-natural-gas-sensor","title":"MQ4 METHANE NATURAL GAS SENSOR","description":"\u003cp\u003eThe MQ4 Methane\/Natural Gas Sensor Module detects methane (CH₄) and CNG with secondary sensitivity to smoke and alcohol. Dual output: analog voltage (AO) and digital TTL (DO) via LM393 comparator. Adjustable threshold via onboard potentiometer. No external components required. Compatible with Arduino, ESP32, and Raspberry Pi.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePin Configuration:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVCC\u003c\/strong\u003e — 5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e — Ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDO\u003c\/strong\u003e — Digital output (TTL, active HIGH on detection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAO\u003c\/strong\u003e — Analog output\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTarget Gas: Methane (CH₄), CNG\u003c\/li\u003e\n\u003cli\u003eDetection Range: 300–10000ppm\u003c\/li\u003e\n\u003cli\u003eSupply Voltage: 3–5V\u003c\/li\u003e\n\u003cli\u003eComparator IC: LM393\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eHome and industrial methane\/natural gas leak detection\u003c\/li\u003e\n\u003cli\u003eCNG gas alarm systems\u003c\/li\u003e\n\u003cli\u003eArduino\/ESP32 gas sensing projects\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Powered by INFINITY WORKS","offers":[{"title":"Default Title","offer_id":47371691950134,"sku":"TW263","price":122.4,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9335\/5062\/files\/MQ4_METHANE_NATURAL_GAS_SENSOR.jpg?v=1787646110","url":"https:\/\/tecwizdom.com\/products\/mq4-methane-natural-gas-sensor","provider":"Tecwizdom.com","version":"1.0","type":"link"}