MQ9 (CO) Carbon Monoxide Combustible Gas Sensor

SKU: 180850

3.11 3.11 Piece 3.11 USD

¥ 22.00

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  • Size: 32mm X22mm X24mm

  • The main chip: LM393, MQ-9 gas sensor

  • Work voltage: DC3-5V

  • With the signal output instructions;

  • Dual output (analog output, and TTL level output);

  • TTL output valid signal is low, the microcontroller can be connected directly;

  • 0 ~ 5V analog output voltage, the higher the voltage the higher the concentration;

  • Detect carbon monoxide, combustible gas has a good sensitivity

  • With a long life and reliable stability;

  • Fast response characteristics;


  • For home or factory gas leak monitoring devices, suitable for carbon monoxide, combustible gas monitoring device, can test carbon monoxide, combustible gas 10 to 1000ppm CO, 100 to 10000ppm range