Gas/Smoke Sensor MQ-02

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 * 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)