{"product_id":"mq-4-methane-natural-gas-sensor","title":"MQ-4 Methane Natural Gas Sensor","description":"\u003cp\u003e\u003cstrong\u003eSpecification: \u003c\/strong\u003eThe MQ-4 is a resistive-type metal oxide semiconductor gas sensor designed to detect methane (CH4) concentrations in air. In a laboratory setting, it is primarily used for monitoring gas leaks in ventilation systems, safety alarms, and experimental setups involving flammable hydrocarbon gases.\u003c\/p\u003e\n\u003cp\u003eTechnical Specifications:\u003cbr\u003e* Target Gas: Methane (CH4), Natural Gas\u003cbr\u003e* Concentration Range: 300 – 10,000 ppm\u003cbr\u003e* Heater Voltage: 5.0V ± 0.2V (AC\/DC)\u003cbr\u003e* Loop Voltage: ≤ 24V DC\u003cbr\u003e* Load Resistance: 20kΩ (adjustable)\u003cbr\u003e* Heater Resistance: 31Ω ± 3Ω\u003cbr\u003e* Heater Power Consumption: ≤ 950mW\u003cbr\u003e* Sensitivity (Rs\/Ro): ≥ 5 (at 1000 ppm CH4)\u003cbr\u003e* Operating Temperature: -10°C to +50°C\u003cbr\u003e* Response Time: ≤ 10s\u003cbr\u003eDimension: 32*20*22mm\u003cbr\u003ePackage: 9x9cm\u003cbr\u003eWeight: 8gm\u003c\/p\u003e","brand":"scientifickart","offers":[{"title":"Default Title","offer_id":51446001762610,"sku":"OM-31051\/1","price":136.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/6561\/2338\/files\/ChatGPTImageJul9_2026_05_21_53PM.png?v=1783597933","url":"https:\/\/scientifickart.com\/products\/mq-4-methane-natural-gas-sensor","provider":"scientifickart","version":"1.0","type":"link"}