The MQ-2 is a gas sensor that detects a variety of gases such as methane, butane, propane, alcohol, and smoke. It is used for indoor air quality monitoring and gas leakage detection.
Operating Voltage: 5V
Detection Range: 300 ppm to 10,000 ppm
Heating Time: Less than 60 seconds
Communication: Analog output
Library: No specific library, direct analog reading