{"product_id":"mq-series-sensors-mq135-mq2-mq3-mq5-mq7-detecting-gas-sensor-detector-mq-135-mq-2-mq-3-mq-5-mq-7","title":"MQ Series Sensors MQ135 MQ2 MQ3 MQ5 MQ7 Detecting Gas Sensor Detector MQ-135 MQ-2 MQ-3 MQ-5 MQ-7","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eEC Buying\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMaterial\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMixture\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOutput\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eAnalog Sensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSmart Electronics\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSwitch And Sensor For Arduino STM\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eTheory\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMQ135 MQ2 MQ3 MQ5 MQ7\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eBiosensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eUse\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eGas Sensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ3:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e   Used for post-drink supervision and detection of motor vehicles and other risky workers and detection of ethanol vapor in other places.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eSpecification:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eGas: Alcohol (ethanol)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eDetection range: 10 ~ 1000ppm alcohol\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eCharacteristic gas: 125ppm alcohol\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eSensitivity: R in air\/Rin typical gas≥5\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eSensitive body resistance: 1 ~ 20KΩ in air\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eResponse time ≤ 10s (70% Response)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eRecovery time ≤ 30s (70% Response)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eHeating resistance: 31Ω±3Ω\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eHeating current ≤180mA\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eHeating voltage: 5.0V ± 0.2V\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eHeating power ≤900mW\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eMeasuring voltage ≤24V\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ2:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e     (Gas leak monitoring devices for homes and factories, suitable for detection of liquefied gases, butane, propane, methane, alcohol, hydrogen, fumes, etc.)\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eGas: smoke\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eDetection range: 300 to 10000ppmm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eCharacteristic gas: 1000ppmm isobutane\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eSensitivity: R in air\/Rin typical gas≥5\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eSensitive body resistance: 1KΩ to 20KΩ in 50ppm toluene\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eResponse time: ≤10s\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eRecovery time: ≤30s\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eHeating resistance: 31Ω±3Ω\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eHeating current: ≤180mA\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eHeating voltage: 5.0V ± 0.2V\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eHeating power: ≤900mW\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eMeasuring voltage: ≤24V\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ135: \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e          The gas sensitive material used in the MQ135 gas sensor is tin dioxide (SnO2) with lower conductivity in clean air. When there is a polluting gas in the environment where the sensor is located, the conductivity of the sensor increases as the concentration of the polluting gas in the air increases. The change in conductivity can be converted to an output signal corresponding to the gas concentration using a simple circuit.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e          The MQ135 gas sensor is highly sensitive to ammonia, sulfides, and benzene vapors, and is ideal for monitoring smoke and other harmful gases. This sensor detects a wide range of harmful gases and is a low-cost sensor for a wide range of applications.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eCharacteristics:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eGood sensitivity to harmful gases over a wide range of concentrations\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eHigh sensitivity to ammonia, sulfide, benzene, etc.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eLong life, low cost\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eSimple drive circuit\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eApplication:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eHousehold air pollution alarm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eIndustrial air pollution alarm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003ePortable air pollution detector\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ5:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e        Gas leakage monitoring device for home and factory, suitable for detection of liquefied gas, butane, propane, methane, hydrogen, artificial gas, etc.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eWide range of detection\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eHigh sensitivity\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eFast response recovery\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eExcellent stability\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003elong life\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eSimple drive circuit\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003especification\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eApplicable gases: liquefied gas, methane, gas\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eDetection range: 300 ~ 10000ppm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eCharacteristic gas: 1000ppm isobutane\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eSensitivity: R in air\/R in typical gas≥5\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eSensitive body resistance: 1KΩ～20KΩ in 2000ppm isobutane\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eResponse time: ≤10s\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eRecovery time: ≤30s\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eHeating resistance: 31Ω±3Ω\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eHeating current: ≤180mA\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eHeating voltage: 5.0V ± 0.2V\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eHeating power: ≤900mW\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eMeasuring voltage: ≤24V\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e\u003cspan style=\"background-color:rgb(255, 255, 0)\"\u003eMQ-7:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e          The gas sensing material used in the MQ-7 gas sensor is tin dioxide (SnO2) with lower conductivity in clean air. The low-temperature (1.5V heating) is used to detect carbon monoxide by high-temperature cycle detection method. The conductivity of the sensor increases with the increase of the concentration of carbon monoxide gas in the air, and the high-temperature (5.0V heating) cleans the stray gas adsorbed at low temperature. A simple circuit can be used to convert the change in conductivity into an output signal corresponding to the gas concentration.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size:16px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e        The MQ-7 gas sensor is highly sensitive to carbon monoxide. This sensor detects a wide range of carbon monoxide-containing gases and is a low-cost sensor for a variety of applications.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003ctable style=\"border-collapse:collapse;color:rgb(17, 17, 19);background-color:rgb(239, 239, 239)\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cp\u003e\u003cimg style=\"display:block\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1YOHAXsfrK1RjSszcq6xGGFXaK.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e\u003cimg style=\"display:block\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB16ZTzXEvrK1RjSspcq6zzSXXaf.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e\u003cimg style=\"display:block\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1zJ6AXE_rK1Rjy0Fcq6zEvVXaL.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cp\u003e\u003cimg style=\"display:block\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1WGvBXyHrK1Rjy0Flq6AsaFXa3.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e\u003cimg style=\"display:block\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1Zh2CXErrK1RkSne1q6ArVVXa9.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e\u003cimg style=\"display:block\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1S2jBXs_vK1RkSmRyq6xwupXaA.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003cbr\u003e","brand":"Yoeruyo","offers":[{"title":"1pc MQ5","offer_id":55441271882027,"sku":"14:29#1pc MQ5","price":4.91,"currency_code":"USD","in_stock":false},{"title":"Socket Base","offer_id":55441271914795,"sku":"14:1254#Socket Base","price":2.57,"currency_code":"USD","in_stock":false},{"title":"MQ135 andSocket Base","offer_id":55441271947563,"sku":"14:200006154#MQ135 andSocket Base","price":7.02,"currency_code":"USD","in_stock":false},{"title":"1pc MQ3","offer_id":55441271980331,"sku":"14:173#1pc MQ3","price":5.72,"currency_code":"USD","in_stock":false},{"title":"1pc MQ7","offer_id":55441272013099,"sku":"14:10#1pc MQ7","price":5.13,"currency_code":"USD","in_stock":false},{"title":"5pcs MQ kit","offer_id":55441272045867,"sku":"14:366#5pcs MQ kit","price":22.23,"currency_code":"USD","in_stock":false},{"title":"MQ5 and Socket Base","offer_id":55441272078635,"sku":"14:365458#MQ5 and Socket Base","price":6.53,"currency_code":"USD","in_stock":false},{"title":"MQ7 and Socket Base","offer_id":55441272111403,"sku":"14:496#MQ7 and Socket Base","price":6.71,"currency_code":"USD","in_stock":false},{"title":"MQ2 and Socket Base","offer_id":55441272144171,"sku":"14:200005536#MQ2 and Socket Base","price":6.48,"currency_code":"USD","in_stock":false},{"title":"1pc MQ2","offer_id":55441272176939,"sku":"14:175#1pc MQ2","price":4.91,"currency_code":"USD","in_stock":false},{"title":"MQ3 and Socket Base","offer_id":55441272209707,"sku":"14:100013777#MQ3 and Socket Base","price":7.29,"currency_code":"USD","in_stock":false},{"title":"1pc MQ135","offer_id":55441272242475,"sku":"14:193#1pc MQ135","price":5.45,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/HTB1H9BZXEvrK1RjSspcq6zzSXXaF.webp?v=1788751148","url":"https:\/\/yoeruyo.com\/products\/mq-series-sensors-mq135-mq2-mq3-mq5-mq7-detecting-gas-sensor-detector-mq-135-mq-2-mq-3-mq-5-mq-7","provider":"Yoeruyo","version":"1.0","type":"link"}