MQ-4 Gas detection module: methane

Features

High sensitivity to CH4, natural gas;
Low sensitivity to alcohol, smoke;
Quick response;
Stable and long-lasting;
Simple Circuit;

Application

Used in gas leakage detection equipment both in residences and industry, suitable for detection of CH4, natural gas. LNG (Liquefied Natural Gas), protected from alcohol, smoke and cigarette smoke.

Specifications

Standard conditions:
Circuit voltage 5V ± 0.1
Heating voltage 5V ± 0.1
Load resistance 20KΩ
Heating resistance 33Ω ± 5%
Power consumption less than 750mW
Medium conditions:
Temp. Use -10 ℃ - 50 ℃
Temp. Storage -20 ℃ - 70 ℃

Dimensions: 32x27x22mm

Wiring

Tutorial & Code

https://www.geekstips.com/mq4-sensor-natural-gas-methane-arduino/

Datasheet

https://www.sparkfun.com/datasheets/Sensors/Biometric/MQ-4.pdf