Waveshare MQ-2 Gas Sensor

Overview:

• Sensitive for LPG, propane, hydrogen
• Output voltage boosts along with the concentration of the measured gases increases
• Fast response and recovery
• Features boost circuit
• Adjustable sensitivity
• Signal output indicator

Specifications:

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

How to Use:

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

Package Content:

• MQ-2 Gas Sensor x1
• 4-pin custom connector jumper wire x1