MQ-9 Gas detection module: carbon monoxide, liquefied methane

Features

High sensitivity to CO, CH4, LPG;
Stable and long-lasting;

Application

Used in CO, CH4, LPG detection equipment in residences, industry or car.

Specifications

Standard conditions:
Circuit voltage 5V ± 0.1
Heating voltage 5V ± 0.1
Power consumed around 340mW
Medium conditions:
Temp. Use -20 ℃ - 50 ℃
Temp. Storage -20 ℃ - 50 ℃

Dimensions: 32x20x22mm

Wiring

Tutorial & Code

https://www.elecrow.com/wiki/index.php?title=Analog_CO/Combustible_Gas_Sensor(MQ9)

Datasheet

https://raw.githubusercontent.com/SeeedDocument/Grove-Gas_Sensor-MQ9/master/res/MQ-9.pdf