Monitor LPG, natural gas and coal gas with this MQ-5 gas sensor from Waveshare!

Note: Please do not use this sensor for critical home/industrial/commercial gas sensing applications. Intended for development and learning/hobby purposes only.

Features

• 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
• Sensor only – no cable

Specifications

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

How to Use

Product Wiki: https://www.waveshare.com/wiki/MQ-5_Gas_Sensor

In the case of working with an MCU:

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