{"title":"GAS SENSOR","description":"\u003cp data-start=\"258\" data-end=\"603\"\u003eGas sensors are electronic detection devices designed to identify and measure the presence of different gases in the environment. This category includes a wide range of gas detection modules such as MQ series sensors (MQ-2, MQ-3, MQ-5, MQ-6, MQ-7, MQ-135) used for detecting smoke, LPG, methane, carbon monoxide, alcohol, and air quality levels.\u003c\/p\u003e\n\u003cp data-start=\"605\" data-end=\"1001\"\u003eThese sensors are widely used in Arduino, ESP8266, ESP32, Raspberry Pi, and IoT-based projects for applications such as gas leakage detection, fire safety systems, air quality monitoring, industrial safety alarms, and smart home automation systems. They provide analog or digital output signals that can be easily integrated into microcontroller-based systems for real-time monitoring and alerts.\u003c\/p\u003e\n\u003cp data-start=\"1003\" data-end=\"1279\"\u003eGas sensors are essential for building safety-critical systems that help detect hazardous gas levels early and prevent accidents. They are commonly used in homes, industries, laboratories, and environmental monitoring systems where air quality and gas detection are important.\u003c\/p\u003e\n\u003cp data-start=\"1281\" data-end=\"1520\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eWhether you are building a smart safety system, an IoT environmental monitor, or a DIY electronics project, gas sensors provide reliable, fast, and accurate detection for improving safety and environmental awareness in modern applications.\u003c\/p\u003e","products":[{"product_id":"mq-135-air-quality-sensor","title":"MQ-135 Air Quality Sensor","description":"\u003cp\u003e\u003cstrong\u003eMQ-135 Air Quality Sensor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage\u003c\/strong\u003e: DC 5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Consumption\u003c\/strong\u003e: 150mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput\u003c\/strong\u003e: Analog output with increasing concentration (higher concentration yields higher voltage)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Hazardous gas detection for home and environmental use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitability\u003c\/strong\u003e: Detects gases such as ammonia, aromatic compounds, sulfur, benzene vapor, and smoke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas Detection Range\u003c\/strong\u003e: 10 to 1000 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTTL Output\u003c\/strong\u003e: Valid signal is low level (output low signal light, can be connected to microcontroller IO port)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: 36 mm x 24 mm x 25 mm (L x W x H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Contents\u003c\/strong\u003e: 1 x MQ-135 Air Quality Sensor\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MAJESTRONICZ","offers":[{"title":"Default Title","offer_id":44111625191582,"sku":"","price":110.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/9257\/2574\/files\/SE-117.jpg?v=1721380306"},{"product_id":"mq-2-smoke-sensor","title":"MQ-2 Smoke Sensor","description":"\u003cp\u003e\u003cstrong\u003eMQ-2 Smoke Sensor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply Requirement\u003c\/strong\u003e: 5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface Type\u003c\/strong\u003e: Analog\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Definition\u003c\/strong\u003e:\n\u003cul\u003e\n\u003cli\u003ePin 1: Output\u003c\/li\u003e\n\u003cli\u003ePin 2: GND (Ground)\u003c\/li\u003e\n\u003cli\u003ePin 3: VCC (5V)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharacteristics\u003c\/strong\u003e:\n\u003cul\u003e\n\u003cli\u003eFast response\u003c\/li\u003e\n\u003cli\u003eHigh sensitivity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Contents\u003c\/strong\u003e: 1 x MQ-2 Smoke, Methane Gas \u0026amp; Liquefied Flammable Gas Sensor Module\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MAJESTRONICZ","offers":[{"title":"Default Title","offer_id":44111625289886,"sku":"","price":99.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/9257\/2574\/files\/SE-118.jpg?v=1721380338"},{"product_id":"mq-3-alcohol-sensor","title":"MQ-3 Alcohol Sensor","description":"\u003cp\u003e\u003cstrong\u003eMQ-3 Alcohol Sensor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply\u003c\/strong\u003e: 5V DC or AC circuit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater Voltage Requirement\u003c\/strong\u003e: Included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog Output (AO)\u003c\/strong\u003e:\n\u003cul\u003e\n\u003cli\u003eVoltage Range: 0.1V to 0.3V (pollution-free)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: 10°C to 70°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater Consumption\u003c\/strong\u003e: Less than 750mW\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MAJESTRONICZ","offers":[{"title":"Default Title","offer_id":44111625322654,"sku":"","price":125.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/9257\/2574\/files\/SE-119.webp?v=1721380373"},{"product_id":"mq-4-methane-sensor","title":"MQ-4 Methane Sensor","description":"\u003cp\u003e\u003cstrong\u003eMQ-4 Methane Sensor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor Type\u003c\/strong\u003e: MQ-4 Compressed Natural Gas (CNG) Sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas Detected\u003c\/strong\u003e: Natural Gas (mainly methane, CH4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetection Range\u003c\/strong\u003e: 300 to 10000 ppm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MAJESTRONICZ","offers":[{"title":"Default Title","offer_id":44111625355422,"sku":"","price":89.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/9257\/2574\/files\/SE-120.jpg?v=1721380408"},{"product_id":"mq-6-lpg-ssensor","title":"MQ-6 LPG Sensor","description":"\u003cp\u003e\u003cstrong\u003eMQ-6 LPG Ssensor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Sensitivity\u003c\/strong\u003e: LPG, iso-butane, propane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall Sensitivity\u003c\/strong\u003e: Alcohol, smoke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGood Sensitivity\u003c\/strong\u003e: Combustible gas in a wide range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResponse\u003c\/strong\u003e: High sensitivity to propane, butane, LPG, and natural gas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharacteristics\u003c\/strong\u003e: Long life, low cost, simple drive circuit\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MAJESTRONICZ","offers":[{"title":"Default Title","offer_id":44111625388190,"sku":"","price":108.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/9257\/2574\/files\/SE-121.jpg?v=1721380440"},{"product_id":"mq-7-co-gas-sensor","title":"MQ-7 CO Gas Sensor","description":"\u003cp\u003e\u003cstrong\u003eDetect carbon monoxide gas\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e: DC 5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog Output Voltage\u003c\/strong\u003e: Increases with higher concentration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensitivity\u003c\/strong\u003e: Better sensitivity for carbon monoxide detection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetection Range\u003c\/strong\u003e: 10 to 1000 ppm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MAJESTRONICZ","offers":[{"title":"Default Title","offer_id":44111626109086,"sku":"","price":110.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/9257\/2574\/files\/MQ-7COGASSENSOR.jpg?v=1724767644"},{"product_id":"mq-8-hydrogen-gas-sensor","title":"MQ-8 Hydrogen Gas Sensor","description":"\u003cp data-end=\"241\" data-start=\"0\"\u003eThe \u003cstrong data-end=\"32\" data-start=\"4\"\u003eMQ-8 Hydrogen Gas Sensor\u003c\/strong\u003e is a widely used gas sensor that detects hydrogen (H₂) gas concentrations in the air. It operates on the principle of \u003cstrong data-end=\"170\" data-start=\"151\"\u003echemiresistance\u003c\/strong\u003e, where its internal resistance changes when exposed to hydrogen gas.\u003c\/p\u003e\n\u003cp data-end=\"241\" data-start=\"0\"\u003e\u003cstrong data-end=\"278\" data-start=\"247\"\u003eFeatures of MQ-8 Sensor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"935\" data-start=\"281\"\u003e✅ \u003cstrong data-end=\"312\" data-start=\"283\"\u003eDetects Hydrogen Gas (H₂)\u003c\/strong\u003e – Primarily used to detect hydrogen leaks.\u003cbr data-end=\"358\" data-start=\"355\"\u003e✅ \u003cstrong data-end=\"384\" data-start=\"360\"\u003eWide Detection Range\u003c\/strong\u003e – Typically detects hydrogen concentrations from \u003cstrong data-end=\"459\" data-start=\"434\"\u003e100 ppm to 10,000 ppm\u003c\/strong\u003e.\u003cbr data-is-only-node=\"\" data-end=\"463\" data-start=\"460\"\u003e✅ \u003cstrong data-end=\"486\" data-start=\"465\"\u003eOperating Voltage\u003c\/strong\u003e – Works on \u003cstrong data-end=\"507\" data-start=\"498\"\u003e5V DC\u003c\/strong\u003e power supply.\u003cbr data-end=\"524\" data-start=\"521\"\u003e✅ \u003cstrong data-end=\"553\" data-start=\"526\"\u003eAnalog \u0026amp; Digital Output\u003c\/strong\u003e – Provides both analog (voltage variation) and digital (threshold-based) output.\u003cbr data-end=\"637\" data-start=\"634\"\u003e✅ \u003cstrong data-end=\"655\" data-start=\"639\"\u003ePreheat Time\u003c\/strong\u003e – Requires \u003cstrong data-end=\"705\" data-start=\"667\"\u003epreheating (typically 24–48 hours)\u003c\/strong\u003e for stable operation.\u003cbr data-end=\"730\" data-start=\"727\"\u003e✅ \u003cstrong data-end=\"758\" data-start=\"732\"\u003eSensitivity Adjustment\u003c\/strong\u003e – Potentiometer available to set sensitivity threshold.\u003cbr data-end=\"817\" data-start=\"814\"\u003e✅ \u003cstrong data-end=\"835\" data-start=\"819\"\u003eApplications\u003c\/strong\u003e – Used in hydrogen leak detection systems, industrial safety equipment, and fuel cell monitoring.\u003c\/p\u003e","brand":"MAJESTRONICZ","offers":[{"title":"Default Title","offer_id":45236608172190,"sku":"","price":105.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/9257\/2574\/files\/MQ8.webp?v=1741779345"}],"url":"https:\/\/majestronicz.in\/collections\/gas-sensor.oembed","provider":"MAJESTRONICZ","version":"1.0","type":"link"}