{"product_id":"1pcs-mq-2-3-4-5-sensor-module-air-detection-modular-device-smog-alcohol-methane-combustible-gas-monitor-probe-unit-sensor-module","title":"1PCS MQ-2\/3\/4\/5 Sensor Module Air Detection Modular Device Smog\/Alcohol\/Methane\/Combustible Gas Monitor Probe Unit Sensor Module","description":"\u003cdiv\u003e \n \u003cspan style=\"font-size: 16px;\"\u003eProduct introduction\u003c\/span\u003e \n\u003c\/div\u003e \n\u003cdiv\u003e \n \u003cspan style=\"font-size: 16px;\"\u003eThe gas sensing material used in MQ gas sensor is tin dioxide (SnO2) with low conductivity in clean air. When there is combustible gas in the environment where the sensor is located, the conductivity of the transmitter increases with the increase of the concentration of combustible gas in the air. Using a simple circuit, the change of conductivity can be converted into an output signal corresponding to the gas concentration. MQ gas sensor has high sensitivity to methane and propane and butane. This sensor can detect a variety of combustible gases, especially natural gas, is a low-cost sensor suitable for a variety of nutrients.\u003c\/span\u003e \n\u003c\/div\u003e \n\u003cdiv\u003e\n    \n\u003c\/div\u003e \n\u003cdiv\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eProduct parameters\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eProduct type: semiconductor gas sensor\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eStandard package: bakelite (Black Bakelite)\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eDetection gas :combustible gas and smoke\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eDetection concentration: 300-10000ppm (combustible gas)\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eStandard circuit conditions\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eLoop voltage: VC ≤ 24VDC\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eHeating voltage: VH 5.0 ± 0.2V acordc\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eLoad voltage: RL adjustable\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eGas sensor characteristics under standard test conditions\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eHeating resistance: RH 31 Ω± 3 Ω (room temperature)\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eHeating power consumption :PH ≤ 900MW\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eSensor surface resistance: RS  2K Ω ~ 20kq (in 2000ppm C3H8)\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eSensitivity :S RS (inair) \/ RS (1000ppm isobutane) ≥ 5\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eConcentration slope :A ≤ 0.6r3000ppm \/ r1000ppmc3h8) \u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eStandard test conditions\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eTemperature and humidity: 20 ℃± 2 ℃; 60% ± 5% RH\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eStandard test circuit VC: 5.0V ± 0.1V\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003eVH:5.0V±0.1V\u003c\/span\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cspan style=\"font-size: 16px;\"\u003ePreheating time: not less than 48 hours\u003c\/span\u003e \n \u003c\/div\u003e \n\u003c\/div\u003e \n\u003cp\u003e \u003c\/p\u003e \n\u003cp\u003e \u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003eMQ-2 Smog type gas sensor module\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e \u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003eMQ-3 Alcohol type gas sensor module\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e \u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003eMQ-4 Methane type gas sensor module\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S54f7fa805a9a41cf824b77bef0b61c5eQ.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Seb984960baf54c42941d43c21e459646i.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S3ac93e52002f43bbaf2264f19f4e89e8a.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S286901c94f6c440080cf0d409cfe8475f.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S0f77aaf2d59b476189237a93cf692d2f1.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S137f02be4a2c46068fe44261680c7403E.jpg\"\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003eMQ-5 Coal gas type gas sensor module\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e \u003c\/p\u003e \n\u003cp\u003e \u003c\/p\u003e \n\u003cp\u003e \u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003eShipping                                                                                       \u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e1.Items are only shipped after Payment is received.\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e2.Please check out your Address carefully when processing order.\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e3.Please Contact us as soon as possible if you haven't received the package in 30 Days.\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e4.If you haven’t received the parcel in 45 Days,please allow us 3-5 Working days for checking undelivered packages before we issue you Refund.\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e \u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003ePayment                                                                                      \u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e1.Before placing your order,please confirm pricing and other details with the supplier.\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e2.Please make sure you read the entire description and agree to transaction before buying.\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e \u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003eReturns                                                                                      \u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e1.A full refund will be given if items are returned in their original condition.\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e2.Merchandise which is damaged or missing components is not refundable.\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e3.Buyers are responsible for return shipping with proper packaging.\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e4.On receiving items,we will refund you immediately.\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e \u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003eWarranty                                                                                      \u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e1.Before returning items,please make sure you check our return address,please use regular postal service and sand us the tracking number.As soon as we receive the items,we will repair of exchange them as soon as possible.\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e2.We do not assume any custom risk,if it easily cause any cause any custom problem in your country,we recommend you choose other shipping methods.just like China Post Air.If you have other need,please feel free to contact us any time.\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e \u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003eFeedback                                                                                      \u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e1.We rely on our reputation and customer satisfaction to succeed.Therefore,you feedback is extremely important to us,please leave good feedback to us if you get satisfied with our goods and service.\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e2.We care about our valued customers,and will always try to help you.\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e3.Please give us the opportunity to resolve any problem.We understand the concerns and frustrations you might have,and will try our best to resolve the issues.\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e4.Please email us before leaving any negative feedback or opening any dispute on the site.We will help you to resolve the problem.\u003c\/span\u003e\u003c\/p\u003e \n\u003cdiv\u003e\n    \n\u003c\/div\u003e","brand":"TEJIATE\/特加特","offers":[{"title":"MQ-2","offer_id":51805434806573,"sku":"04853","price":1.2,"currency_code":"CNY","in_stock":true},{"title":"MQ-5","offer_id":51805434839341,"sku":"12147","price":1.2,"currency_code":"CNY","in_stock":true},{"title":"MQ-4","offer_id":51805434872109,"sku":"12146","price":1.2,"currency_code":"CNY","in_stock":true},{"title":"MQ-3","offer_id":51805434904877,"sku":"12145","price":1.46,"currency_code":"CNY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/7884\/6765\/files\/S54f7fa805a9a41cf824b77bef0b61c5eQ.webp?v=1770358614","url":"https:\/\/www.tejiate.net\/products\/1pcs-mq-2-3-4-5-sensor-module-air-detection-modular-device-smog-alcohol-methane-combustible-gas-monitor-probe-unit-sensor-module","provider":"TEJIATE\/特加特","version":"1.0","type":"link"}