MQ-7 Carbon Monoxide Gas Sensor Module – 100–1000 ppm

The MQ-7 Carbon Monoxide Gas Sensor Module is designed for detecting CO concentrations in ambient air. It integrates the MQ-7 sensing element with onboard protection circuitry and an adjustable potentiometer for threshold calibration. Operating at 5V DC, the module provides both analog output proportional to gas concentration and TTL digital output for direct interfacing with microcontrollers. With a detection range of 100–1000 ppm and fast response characteristics, it is suitable for safety monitoring, air quality systems, and embedded gas detection applications.