Carbon Monoxide Flammable Gas Sensor MQ-9

This remarkable semiconductor gas sensor is designed to detect carbon monoxide in concentrations ranging from 10 to 1,000 ppm and combustible gases from 100 to 10,000 ppm. With its straightforward analog voltage interface, it only needs one analog input pin from your microcontroller, making it easy to integrate into your projects.

Using this MQ - 9 gas sensor is simple. First, connect the sensor to your microcontroller using the single analog input pin as required. Once connected, it will start detecting carbon monoxide and combustible gases right away. When in use, make sure the sensor is placed in an area where gas can freely flow to ensure accurate detection. As for maintenance, keep the sensor clean and free from dust. Avoid exposing it to extreme temperatures or harsh chemicals. If you notice a significant decrease in its performance, it might be time to replace the sensor.