MQ-4 Gas Sensor

The MQ-4 methane gas sensor detects the methane (CNG) natural gas density between 300 ppm and 10000 ppm. It can be used for natural gas leak detection. It gives analog output.

Technical Specifications Board Spesific Properties Board Pinout

Technical Specifications

ItemMQ-4 Gas Sensor
Input Voltage5v
FunctionsGas Sensor
Operating Temperature-65°C~+150°C
Working Voltage2V~32V
Board Dimensions 20 x 40 mm

Board Spesific Properties

  • Analogue output. The output voltage changes proportionally to the gas concentration in the air.
  • High sensitivity. It precisely measures the concentration of Natural Gas, Methane Gas (CH4).
  • Measuring Range: 300-10000 ppm.
  • Fast response time.

Board Pinout

PIN NumberPIN NameDescription
15VPower supply
2A0Analog Output
3D0Digital Output
4GNDGROUND

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