Gravity: Analog CO Sensor (MQ7)

The Gravity: Analog CO Sensor uses an MQ7 probe to detect carbon monoxide concentrations in the air from 20 to 2000 ppm. Equipped with standard Gravity pinouts, it delivers a proportional analog output for straightforward integration with microcontrollers such as Arduino. It is ideal for students, makers, and hobbyists developing gas leak detection and indoor air monitoring systems.

Wide carbon monoxide detection range

The onboard MQ7 sensing probe measures carbon monoxide concentrations between 20 and 2000 ppm. It features high sensitivity and fast response times, providing reliable detection for early leak warning systems.

Adjustable sensitivity and analog output

The sensor generates an analog voltage output directly proportional to the detected gas concentration. An integrated onboard potentiometer allows manual adjustment of the detection sensitivity.

Plug-and-play Gravity interface

Designed for standard 5V operation, the board features a 3-pin Gravity interface providing power, ground, and analog signal lines. It pairs seamlessly with microcontroller IO expansion shields for solder-free prototyping.

Compact and durable design

The board measures 40 x 20 mm, making it easy to embed into custom enclosures and desktop monitors. The sensor probe is built for stable, long-life operation.

Package contents

Each pack includes one Gravity: Analog Carbon Monoxide Sensor (MQ7) module.

Downloads & documentation

• Product wiki (DFRobot)