MQ7 Carbon Monoxide Sensor (20-2000ppm Detection, Analog Output)

The MQ7 Carbon Monoxide Sensor is a dedicated gas detection module designed to measure carbon monoxide concentrations from 20 to 2000ppm. Ideal for students, hobbyists, and makers, it suits a wide variety of air quality and safety prototyping projects. The board delivers an analog resistance output compatible with common microcontroller ADC inputs.

Wide carbon monoxide detection range

This sensor measures carbon monoxide levels across a 20 to 2000ppm detection span. It provides the sensitivity required for detecting both ambient trace amounts and higher hazard levels.

Analog voltage output

The module provides an analog 0 to 5V resistance output proportional to gas concentration. This standard voltage range connects directly to microcontroller analog pins for simple data reading.

Dedicated five-volt heater coil

An integrated 5V heater coil provides the operating temperature required by the internal sensing material. This heating element enables consistent gas response during monitoring cycles.

Air quality and safety applications

Engineered for gas safety systems and environmental monitoring builds, this sensor helps detect CO accumulation in indoor spaces. It offers a practical sensing component for educational experiments and DIY safety alarms.

Downloads & documentation

• TECHNICAL DATA MQ-7 GAS SENSOR