MQ-2 Smoke, LPG & CO Gas Sensor Module

MQ-2 Smoke, LPG & CO Gas Sensor Module

The MQ-2 gas sensor module is a low-cost, easy-to-use analog/digital gas sensor built for detecting LPG, i-butane, propane, methane, alcohol, hydrogen, and smoke. It needs no external components beyond power and ground, and its sensitivity is adjustable via an onboard potentiometer, making it a popular choice for gas-leak detection and smoke-alarm projects with Arduino, Raspberry Pi, or other microcontrollers.

Features

• Detects LPG, i-butane, propane, methane, alcohol, hydrogen, and smoke
• Both digital (TTL) and analog (0-5V) output
• Adjustable sensitivity via onboard potentiometer
• Simple 3-pin interface — just power, ground, and signal
• Fast response with wide detection range (200-10,000ppm)

Applications

• Gas leakage detection systems
• Smoke detection and fire-alarm projects
• Arduino/Raspberry Pi environmental monitoring
• Industrial and home safety devices

Package Includes

• 1 x MQ-2 Smoke/LPG/CO Gas Sensor Module

Note: Product images are for illustration purposes only. Actual product may vary slightly in appearance.