The MQ-9 Gas Sensor Module is a semiconductor sensor capable of detecting both combustible gases (100–10,000 ppm) and carbon monoxide (CO) (10–10,000 ppm) in the environment.
It features a simple analog voltage interface, allowing easy connection to a microcontroller using just a single analog input pin.
Technical Specifications:
- Operating Voltage: 5V DC
- Detection Range:
- Combustible gases: 100 – 10,000 ppm
- Carbon Monoxide (CO): 10 – 10,000 ppm
- Operating Temperature: -10°C to +50°C
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