MQ-2 Gas & Smoke Sensor – LPG, Methane, Hydrogen, and Smoke Detection Module

The MQ-2 Gas Sensor Module is a highly sensitive and versatile gas detection module designed to detect smoke, LPG, methane (CH4), hydrogen, propane, and other flammable gases.

This sensor is widely used in smoke alarms, gas leak detectors, home safety systems, industrial safety, and Arduino-based IoT projects. It provides both analog and digital output, making it easy to interface with Arduino, ESP32, ESP8266, Raspberry Pi, and other microcontrollers.

Key Features:

• Detects smoke, LPG, methane, propane, hydrogen, and combustible gases

• High sensitivity & fast response time

• Analog + digital output

• Easy to use with Arduino & microcontrollers

• Ideal for smoke alarms, gas leak detectors, and IoT safety projects

• Adjustable sensitivity (using onboard potentiometer)

• Long life and stable performance