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MQ-4 Methane CNG Gas Sensor Module

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This is a simple-to-use compressed natural gas (CNG) sensor, suitable for sensing natural gas (composed of mostly Methane [CH4]) concentrations in the air. The MQ-4 can detect natural gas concentrations anywhere from 200 to 10000 ppm.


  • Product Name: Gas Sensor Module
  • Model: MQ-4
  • Type: Analog
  • Detecting Type: CH4, Methane
  • Small sensitivity to alcohol, smoke
  • Rated Voltage: DC 5V
  • Detecting Range: 200-10000ppm
  • Pin Quantity: 4
  • Pin Definition : AO - Analog Output, DO - Digital Output, GND - Ground, VCC - Voltage To Current Converter

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