{"product_id":"mq-8-h2-gas-sensor-module-shield-liquefied-electronic-detector-module","title":"MQ-8 H2 Gas Sensor Module Shield Liquefied Electronic Detector Module","description":"\u003cstrong\u003eFeatures :\u003c\/strong\u003e         ?         - MQ-8 gas sensor sensitive material used in clean air conductivity is lower tin dioxide (SnO2). When the sensor is present in the environment in which the combustible gas, the sensor's conductivity increases with the concentration of combustible gases in air increases.         - Using a simple circuit can be converted to the change in conductivity of the gas concentration with the corresponding output signal. MQ-8?H   \u003csub\u003e2\u003c\/sub\u003e?gas sensor of high sensitivity, the monitoring of the other hydrogen-containing gas is also very satisfactory.?         - The sensor can detect a variety of hydrogen-containing gas, in particular, city gas, is a low-cost sensors for a variety of applications.         - Suitable for domestic or industrial?H   \u003csub\u003e2\u003c\/sub\u003e?leak on a monitoring device. Are not subject to ethanol vapor, soot, carbon monoxide and other gases interference.         ?         \u003cstrong\u003eSpeciffications:\u003c\/strong\u003e         ?         1. It adopts high quality double panel design with power indication and TTL signal output indication;         2. It has DO switch signal (TTL) output and AO analog signal output;         3. The TTL output valid signal is low. (When the output is low, the signal light is on, it can be directly connected to the MCU or relay module)         4. The voltage of the analog output, the higher the concentration, the higher the voltage.         5. It has good sensitivity to gas and natural gas detection.         6, there are four screw holes for easy positioning;         7, product dimensions: 32 (L) * 20 (W) * 22 (H)         8, has a long service life and reliable stability         9, fast response recovery characteristics         ?         \u003cstrong\u003eElectrical Performance:\u003c\/strong\u003e         ?         Dection of gas:?H   \u003csub\u003e2\u003c\/sub\u003e         Dection of Concentration:100-1000ppm?         Input voltage: DC5V         Power consumption (current): 150mA         DO output: TTL digital quantities 0 and 1 (0.1 and 5V)         AO output: 0.1-0.3V (relatively non-polluting), the highest concentration voltage is about 4V         Using the chip: AT89S52         Crystal: 11.0592MHZ         Baud rate: 9600         Compilation environment: Keil         ?         \u003cstrong\u003eSpecial Reminder:\u003c\/strong\u003e         ?         After the sensor is energized, it needs to be preheated for about 20S, and the measured data is stable. The heating of the sensor is a normal phenomenon, because there is a heating wire inside, if it is hot, it is not normal.         ?         \u003cstrong\u003ePackage Included:\u003c\/strong\u003e         ?         1 x MQ-8 Gas Sensor Module   \u003cbr\u003e    \u003cbr\u003e         \u003cstrong\u003eIf you want another model, you can click on the ID\u003c\/strong\u003e    \u003cbr\u003e ?       \u003ctable border=\"1\" cellspacing=\"0\" style=\"width:\"\u003e     \u003ctbody\u003e      \u003ctr\u003e       \u003ctd style=\"width:\"\u003e Model\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e Gas Detection\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e Item ID\u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e       \u003ctd style=\"width:\"\u003e MQ2\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e flammable gas\/smoke\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e \u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e       \u003ctd style=\"width:\"\u003e ?MQ3 ?????\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e alcohol steam\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e \u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e       \u003ctd style=\"width:\"\u003e MQ4\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e Natural gas\/Methane\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e \u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e       \u003ctd style=\"width:\"\u003e MQ5 ?????\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e Liquefied gas\/Methane\/Coal gas \/LPG\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e \u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e       \u003ctd style=\"width:\"\u003e MQ6 ??????\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e Liquefied gas\/Isobutane\/Propane\/LPG\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e \u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e       \u003ctd style=\"width:\"\u003e MQ7 ???\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e Carbon monoxide\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e \u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e       \u003ctd style=\"width:\"\u003e MQ8 ??????\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e hydrogen\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e \u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e       \u003ctd style=\"width:\"\u003e MQ9 ???????\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e Carbon monoxide flammable gas\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e \u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e       \u003ctd style=\"width:\"\u003e MQ131\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e Ozone Concentration\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e \u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e       \u003ctd style=\"width:\"\u003e MQ135 ?\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e Ammonia\/sulfide\/benzene vapor\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e \u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e       \u003ctd style=\"width:\"\u003e A set of MQ\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e ?\u003c\/td\u003e       \u003ctd style=\"width:\"\u003e \u003c\/td\u003e      \u003c\/tr\u003e     \u003c\/tbody\u003e    \u003c\/table\u003e      \u003cbr\u003e   \u003cbr\u003e     \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/36\/1C\/3d91f5f6-a306-45fb-a0c2-1af0fb7b9231.JPG\"\u003e   \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/61\/DF\/f7383315-15e5-42ee-8407-daeec02b2772.JPG\"\u003e   \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/AC\/E6\/85dfeccd-bf84-4ef5-ae6b-5ecea37bc63e.JPG\"\u003e   \u003cbr\u003e","brand":"ZHIQIAN","offers":[{"title":"Default Title","offer_id":43928357175491,"sku":"ZHIQIAN-032841","price":296.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/4355\/1683\/files\/39679951-37fa-42bc-ba9e-324a47644619.jpg?v=1725735327","url":"https:\/\/wrsss.com\/products\/mq-8-h2-gas-sensor-module-shield-liquefied-electronic-detector-module","provider":"Wrsss","version":"1.0","type":"link"}