MQ-9 Sensor (Carbon Monoxide, Methane, LPG)

MQ-9 Gas Sensor (Carbon Monoxide, Methane, LPG) with digital und analog output.

Gas sensor to detect gas leaks or measure gas. Trigger-value for the digital output can be modified. The analog sensor-value can be read with a simple analogRead(Ax); with every Arduino.

The sensor can be directly connected to a microprocessor, no further components or electronics are required.

• MQ9 Gas Sensor to detect Carbon Monoxide, Methane, LPG
• Operating Voltage 5V
• digital comparator-output
• analog output
• trigger-value for digital output can be adjusted
• PCB-size 35mm x 21mm
• 4 mounting holes
• Pins: GND, DOUT, AOUT, VCC

Please refer to the datasheet for more information about the detectable gasses.

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