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Ecloud Shop® MQ-2 Combustible Gas Sensor Module Smoke Methane Butane Detector for Arduino

Average Customer Rating:
4.7 (Based on 28 reviews)
  • Price:$4.64 & FREE Shipping
  • Availability:Usually ships in 24 hours
Product Description
  • Can be used in homes and factories to detect gas leakage monitoring devices,
  • suitable for liquefied petroleum gas, butane, propane, methane, smoke, etc.
MQ-2 gas sensor sensitive material used in the clean air, the lower the conductivity of tin oxide (SnO2). When there is an environment in which the combustible gas sensor, conductivity sensor with increasing concentration of combustible gases in air increases. Use simple circuit to convert the change in conductivity of the gas concentration corresponding to the output signal.MQ-2 gas sensor high for liquefied petroleum gas, propane, hydrogen sensitivity of detection of natural gas and other flammable vapors are also very good. The sensor can detect a variety of combustible gas, it is a low-cost sensors for a variety of applications.Electrical performance:Input voltage: DC5V Power (current): 150mADO output: TTL digital 0 and 1 (0.1 and 5V)AO Output: about 0.1-0.3V (relatively clean), the highest concentration voltage 4VSpecial note: After the sensor is powered, needs to warm up about 20S, measured data becomes stable, sensor fever is a normal phenomenon, because the inside with an electric wire, if not normal hot.A module
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