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MQ-8 gas sensor is suitable for sensing is Hydrogen Gas which with lower conductivity in clean air. When hydrogen gas exists, the sensor’s conductivity gets higher along with the gas concentration rising. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit. MQ-8 gas sensor has high sensitivity to hydrogen gas, also has anti interference to other gases.The sensor’s output is an analog resistance. This sensor can detect hydrogen, especially city gas. It is a kind of low-cost sensor for kinds of applications.

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Specificatoins of MQ-8 Hydrogen Gas Sensor Module:

  • Circuit Voltage : 5V
  • Heating Resistance : 33Ω ± 5%
  • Heating consumption : About 350mW
  • Relative humidity : Less than 95%RH

Features of MQ-8 Hydrogen Gas Sensor Module:

  • It has good sensitivity to hydrogen gas in wide range.
  • Long lifespan, low cost and simple drive circuit
  • Small sensitivity to alcohol, LPG,cooking fumes
  • Stable and long life
  • Selective digital/analog output using toggle switch
  • High sensitivity and response time
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