MQ-5 gas sensor (LPG, natural gas, coal gas)

Overview

Sensitive for LPG, natural gas, coal gas
Output voltage boosts along with the concentration of the measured gases increases
Fast response and recovery
Adjustable sensitivity
Signal output indicator
Specifications

Power: 2.5V ~ 5.0V
Dimension: 40.0mm * 21.0mm
Mounting holes size: 2.0mm
Applications

Gas leakage detector
How to Use

In the case of working with a MCU:

VCC ↔ 2.5V ~ 5.0V
GND ↔ power supply ground
AOUT ↔ MCU.IO (analog output)
DOUT ↔ MCU.IO (digital output)