MQ-9 Carbon Monoxide & Flammable Gas Sensor Board

Part Number GASSE-001009 Categories ,

The MQ-9 gas sensor is a gas sensor which can detect carbon monoxide, coal, and liquefied gases. The resistance of the sensitive component changes as the concentration of the gas changes making it ideal for gas leakage applications.



  • Operating Voltage: 5V
  • Concentration Range: 0-1000ppmCO, 100-1000PPm Gas
  • On-board potentiometer for sensitivity adjustments