MQ2 LPG Gas Leak Sensor Module – Smoke, Propane, Methane, and Hydrogen Detector

The MQ2 LPG Gas Leak Sensor Module is a reliable and cost-effective solution for detecting a wide range of combustible gases. It features high sensitivity to LPG, propane, hydrogen, methane, carbon monoxide, and smoke, making it ideal for domestic and industrial safety applications.

This sensor utilizes SnO₂ (tin oxide) as the gas-sensitive material, which increases conductivity as gas concentration rises. The module provides both analog and digital outputs, and its sensitivity can be adjusted via the onboard potentiometer. With a simple drive circuit and long operational life, the MQ2 sensor is widely used in gas leak detectors, Arduino projects, and air quality monitoring systems.

🔧 Key Features

• High-sensitivity MQ2 LPG Gas Leak Sensor Module
• Detects a broad range of gases: LPG, propane, methane, hydrogen, CO, and smoke
• Both analog and digital outputs available
• Adjustable sensitivity via potentiometer
• Low cost and long operating life
• Simple interface and easy integration

📐 Technical Specifications

📌 Applications

• Domestic gas leakage detection systems
• Industrial combustible gas detectors
• Portable gas detection devices
• Smart home safety monitoring
• Arduino and DIY gas sensing projects

💡 Important Usage Notes

• Avoid water condensation on the sensor surface
• Do not expose the sensor to high gas concentrations for extended periods
• Avoid storing without power for long durations
• Prevent continuous vibration or strong physical impact

📦 Package Includes

• 1 × MQ2 LPG Gas Leak Sensor Module