MQ-7 Gas detection module: carbon monoxide

Features

High sensitivity to carbon monoxide;
Stable and long-lasting;

Application

Used in carbon monoxide (CO) detection equipment in residences and industry or in the car.

Specifications

Standard conditions:
Circuit voltage 5V ± 0.1
Heating voltage 5V ± 0.1
Power consumed around 350mW
Medium conditions:
Temp. Use -20 ℃ - 50 ℃
Temp. Storage -20 ℃ - 50 ℃

Dimensions: 40x22x21mm

Wiring

Tutorial & Code

https://www.instructables.com/id/Arduino-CO-Monitor-Using-MQ-7-Sensor/

Datasheet

https://www.sparkfun.com/datasheets/Sensors/Biometric/MQ-7.pdf