The MQ7 Carbon Monoxide Gas Sensor Module is a reliable gas detection module specifically designed for sensing Carbon Monoxide (CO) gas in the environment. It is widely used in gas leakage alarm systems, industrial safety equipment, air quality monitoring systems, smart home applications, and DIY electronics projects. The module supports both analog and digital outputs, making it easy to interface with popular microcontrollers such as Arduino, Raspberry Pi, ESP32, NodeMCU, STM32, and other embedded platforms. An onboard potentiometer allows adjustable sensitivity control, while the integrated LM393 comparator provides stable digital output signals. With fast response time, stable performance, and easy integration, the MQ7 sensor is suitable for carbon monoxide monitoring, safety alarms, environmental monitoring, robotics, and IoT-based automation systems.