MQ2 Smoke & Gas Sensor Module | LPG, Methane & Smoke Detection Sensor for Arduino, IoT & DIY Projects

Technical Specifications

• Product Type: Smoke & Gas Sensor Module
• Model: MQ-2
• Detectable Gases: LPG, Methane, Butane, Hydrogen, Smoke
• Operating Voltage: 5V DC
• Output Type: Analog (AO) & Digital (DO)
• Sensitivity Control: Adjustable via Onboard Potentiometer
• Response Time: Fast Response & Recovery
• Interface Pins: VCC, GND, DO, AO
• Indicator LEDs: Power & Output Status
• Application: Gas leakage detection, smoke alarms, safety systems

Product Description

MQ2 Smoke Sensor Module is widely used for detecting smoke and flammable gases like LPG and methane. It provides both analog and digital outputs with adjustable sensitivity, making it ideal for Arduino, IoT, and safety alarm projects.