MQ-2 Gas Sensor Module

The MQ-2 Gas Sensor is a highly sensitive and reliable gas detection module used for detecting LPG, propane, hydrogen, methane, carbon monoxide, and alcohol vapors. It operates on a metal oxide semiconductor (MOS) principle, where gas concentration is measured based on changes in sensor resistance.

This module is widely used in gas leakage detection systems, safety monitoring devices, home automation, and industrial applications. It provides both analog and digital output signals, making it easy to interface with Arduino, ESP32, Raspberry Pi, and other microcontrollers.

🔹 Key Features

✔ Detects multiple gases – LPG, propane, hydrogen, CO, methane, alcohol
✔ Dual Output – Analog (AO) & Digital (DO) signals for easy integration
✔ Adjustable Sensitivity – Potentiometer for threshold adjustment
✔ Quick Response & High Sensitivity
✔ Low Power Consumption & Long Life

📦 Package Includes

✅ 1 x MQ-2 Gas Sensor Module

🚀 Applications

🔹 Gas Leakage Detection Systems
🔹 Air Quality Monitoring
🔹 Smart Home Automation
🔹 Industrial Gas Monitoring
🔹 Fire Safety & Hazard Prevention
🔹 Automotive Gas Leak Detection

📌 How It Works

1. Analog Output (AO): Provides a variable voltage based on gas concentration.
2. Digital Output (DO): Triggers HIGH/LOW signal when gas level exceeds the set threshold (adjustable via potentiometer).
3. Connect to Arduino/Raspberry Pi to read sensor values and trigger alarms or automation.

🌟 Ideal for home and industrial gas leak detection! Ensure safety with the MQ-2 sensor.