MQ7 Carbon Monoxide (CO) Gas Sensor (Analog Gas Detection Sensor)

The MQ7 Carbon Monoxide Gas Sensor is a semiconductor gas sensor designed to detect carbon monoxide (CO) concentration in the air. It features a sensitive tin dioxide (SnO2) sensing element whose resistance changes in the presence of carbon monoxide, producing an analog output proportional to the gas concentration. The sensor is widely used in gas leakage detection, air quality monitoring, industrial safety systems, and embedded applications. It can be interfaced with Arduino, ESP32, STM32, Raspberry Pi, and other microcontroller platforms for real-time monitoring and alarm systems.

Key Features -

• Detects carbon monoxide (CO) gas

• High sensitivity to CO

• Analog output signal

• Stable and reliable performance

• Long operational life

• Fast response and recovery time

• Easy microcontroller interfacing

• Compact sensor design

• Suitable for safety monitoring systems

• Ideal for gas detection applications

Specifications -

• Product type - Carbon Monoxide Gas Sensor

• Sensor model - MQ7

• Sensor type - Semiconductor Gas Sensor

• Target gas - Carbon Monoxide (CO)

• Operating voltage - 5V DC

• Output type - Analog

• Sensing material - Tin Dioxide (SnO2)

• Preheat time - Required for Stable Readings

• Detection range - Suitable for Carbon Monoxide Monitoring

• Board type - Gas Sensor

Applications -

• Carbon monoxide leak detection

• Industrial safety systems

• Air quality monitoring

• Gas alarm systems

• Home safety devices

• Environmental monitoring

• IoT monitoring projects

• Embedded electronics