{"product_id":"mq-2-gas-sensor-module-for-h2-lpg-ch4-co-smoke-or-propane-detector-module","title":"MQ-2 Gas Sensor Module For H2, LPG, CH4, CO, Smoke or Propane Detector Module","description":"\u003cmeta name=\"description\" content=\"Buy MQ2 Gas Sensor Module For H2 LPG CH4 CO Smoke or Propane Det online in India at best price from The Tech Depot, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\u003ch1\u003eMQ-2 Gas Sensor Module - Detect H2, LPG, CH4, CO, Smoke \u0026amp; Propane\u003c\/h1\u003e\n\n\u003cp\u003eReliable multi-gas detection module from The Tech Depot, Bengaluru. The MQ-2 sensor module provides accurate, real-time detection of combustible gases and smoke - ideal for safety systems, IoT projects, and industrial monitoring. Fast shipping, 7-day warranty on manufacturing defects, and expert support included.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Type\u003c\/td\u003e\n\u003ctd\u003eMQ-2 Semiconductor Gas Sensor (SnO2-based)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetectable Gases\u003c\/td\u003e\n\u003ctd\u003eH2, LPG, CH4, CO, Alcohol, Smoke, Propane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eAnalog (A0) + Digital (D0) with onboard comparator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Range\u003c\/td\u003e\n\u003ctd\u003e300 - 10,000 ppm (varies by gas)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePreheat Time\u003c\/td\u003e\n\u003ctd\u003e~20 seconds for stable readings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity Adjustment\u003c\/td\u003e\n\u003ctd\u003eOnboard potentiometer for digital threshold tuning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndicator LEDs\u003c\/td\u003e\n\u003ctd\u003ePower LED + Digital Output trigger LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003e4-pin header (VCC, GND, A0, D0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComparator IC\u003c\/td\u003e\n\u003ctd\u003eLM393 dual comparator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard Dimensions\u003c\/td\u003e\n\u003ctd\u003e~32 mm x 20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eScrew-hole for secure installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eArduino, ESP32, ESP8266, Raspberry Pi, STM32, and all 5V-logic microcontrollers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7-day warranty on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003eEmail \u0026amp; WhatsApp 24\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eWhy Choose This MQ-2 Gas Sensor Module?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Gas Detection:\u003c\/strong\u003e A single module detects hydrogen, LPG, methane, carbon monoxide, smoke, propane, and alcohol vapors - versatile protection in one compact board\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Output Modes:\u003c\/strong\u003e Analog output for precise concentration measurement and digital output for simple threshold-based triggering - use either or both simultaneously\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Sensitivity:\u003c\/strong\u003e Onboard potentiometer lets you fine-tune the digital trigger threshold to match your specific environment and application requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play with Arduino \u0026amp; ESP32:\u003c\/strong\u003e Standard 4-pin header connects directly to any microcontroller - read analog values with analogRead() or monitor digital pin for instant alerts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Response Time:\u003c\/strong\u003e High-sensitivity SnO2 sensing element responds quickly to changes in gas concentration, providing near-real-time detection for safety-critical applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% Authentic:\u003c\/strong\u003e Sourced directly from trusted, authorized suppliers - genuine MQ-2 sensing element with proper calibration characteristics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-5 days shipping:\u003c\/strong\u003e Ships from our Bengaluru warehouse to most locations across India, with same-day delivery available in Bengaluru\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpert Technical Support:\u003c\/strong\u003e Full guidance on wiring, calibration, code integration, and troubleshooting included with every purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eProject Ideas\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart Home Gas Leak Alarm:\u003c\/strong\u003e Build an LPG and natural gas leak detector with buzzer and SMS\/push notification alerts using Arduino or ESP32 - protect your kitchen and home from dangerous leaks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIoT Air Quality Monitor:\u003c\/strong\u003e Combine with ESP8266\/ESP32 and cloud platforms like Blynk, ThingSpeak, or Home Assistant to remotely monitor gas levels and smoke from anywhere via your smartphone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire \u0026amp; Smoke Detection System:\u003c\/strong\u003e Create an early-warning smoke detector that triggers alarms, activates exhaust fans, or sends emergency alerts before visible flames appear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Safety Monitor:\u003c\/strong\u003e Deploy in workshops, factories, or warehouses to continuously monitor for combustible gas accumulation and trigger automated ventilation or shutdown systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon Monoxide Detector:\u003c\/strong\u003e Build a CO safety monitor for enclosed spaces like garages, basements, or rooms with gas heaters - critical for preventing silent CO poisoning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobotics \u0026amp; Autonomous Systems:\u003c\/strong\u003e Integrate into mobile robots for hazardous environment exploration - detect gas leaks in mines, pipelines, or disaster zones\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEducational Lab Projects:\u003c\/strong\u003e Perfect for learning about analog-to-digital conversion, sensor calibration curves, threshold logic, and real-world embedded systems design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Sensor Environmental Station:\u003c\/strong\u003e Combine with temperature (DHT22), humidity, dust (GP2Y1010AU0F), and air quality (MQ-135) sensors for a comprehensive environmental monitoring dashboard\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eThe MQ-2 module uses a tin dioxide (SnO2) semiconductor sensing element. In clean air, SnO2 has relatively high electrical resistance. When combustible gas molecules contact the heated sensing surface, they reduce the SnO2, lowering its resistance proportionally to gas concentration. The onboard circuit converts this resistance change into an analog voltage (0-5V on the A0\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eProducts ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs technical support available?\u003c\/summary\u003e\n\u003cp\u003eYes, 24\/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return policy?\u003c\/summary\u003e\n\u003cp\u003e7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003ch2\u003eBuy MQ-2 Gas Sensor Module For H2, LPG, CH4, CO, Smoke or Propane Detector Module Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003eMQ-2 Gas Sensor Module For H2, LPG, CH4, CO, Smoke or Propane Detector Module\u003c\/strong\u003e online at \u003ca href=\"https:\/\/thetechdepot.in\"\u003eThe Tech Depot\u003c\/a\u003e - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003eMQ-2 Gas Sensor Module For H2, LPG, CH4, CO, Smoke or Propane Detector Module\u003c\/strong\u003e with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.\u003c\/p\u003e\n\u003cp\u003eLooking to buy \u003cstrong\u003eMQ-2 Gas Sensor Module For H2, LPG, CH4, CO, Smoke or Propane Detector Module\u003c\/strong\u003e at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.\u003c\/p\u003e","brand":"The Tech Depot","offers":[{"title":"Default Title","offer_id":48746552951041,"sku":"TTD-17704","price":93.28,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/d20086a84e013ef386804855f25d79f5.jpg?v=1778107436","url":"https:\/\/techdepot.in\/products\/mq-2-gas-sensor-module-for-h2-lpg-ch4-co-smoke-or-propane-detector-module","provider":"Tech Depot India","version":"1.0","type":"link"}