
MQ7 Gas Sensor Module
Product Details
The MQ7 Gas Sensor Module is a highly sensitive sensor used for detecting Carbon Monoxide (CO), a colorless and odorless gas that can be dangerous in high concentrations. This sensor is commonly used in gas leakage detection systems, air quality monitoring devices, and safety alarm systems.
The MQ7 sensor operates by using a gas-sensitive semiconductor material whose resistance changes when exposed to carbon monoxide. These resistance changes are converted into analog and digital output signals, allowing easy interfacing with microcontrollers such as Arduino, Raspberry Pi, ESP8266, and ESP32.
The module typically includes an onboard comparator and adjustable potentiometer, which allows users to adjust the sensitivity and detection threshold. With its high sensitivity, stable performance, and long lifespan, the MQ7 sensor is suitable for home safety systems, industrial monitoring, and educational electronics projects.
⚙️ Key Features:
Detects Carbon Monoxide (CO) gas
Provides analog and digital output
Adjustable sensitivity using onboard potentiometer
Fast response and stable performance
Compatible with Arduino, Raspberry Pi, ESP32, and other microcontrollers
🔧 Common Applications:
Carbon monoxide detection systems
Home and industrial safety alarms
Air quality monitoring devices
Smart home automation systems
IoT and embedded electronics projects
Robotics and educational experiments

