MQ-2 Gas Sensor (LPG/Smoke)

MQ-2 Gas Sensor (LPG/Smoke) – Product Description

The MQ-2 Gas Sensor Module is a widely used gas detection sensor designed to detect combustible gases and smoke in both residential and industrial environments. It is highly sensitive to LPG, propane, methane, hydrogen, alcohol vapors, and smoke, making it ideal for gas leakage detection and fire safety applications. The module provides both analog and digital outputs, allowing easy interfacing with microcontrollers such as Arduino, ESP32, Raspberry Pi, and other development boards.

Key Features

• Detects LPG, methane, propane, hydrogen, alcohol, and smoke
• High sensitivity and fast response time
• Adjustable sensitivity using onboard potentiometer
• Analog (AO) and Digital (DO) output signals
• Compatible with Arduino, ESP32, Raspberry Pi, and other microcontrollers
• Long operational life and stable performance
• Simple interface and low-cost solution for gas monitoring projects

Technical Specifications

• Operating Voltage: 5V DC
• Detection Range: 300 – 10,000 PPM
• Sensor Type: SnO₂ Semiconductor Gas Sensor
• Output Type: Analog and Digital
• Heater Current: Approx. 150mA
• Response Time: ≤10 seconds
• Recovery Time: ≤30 seconds
• Operating Temperature: -20°C to +50°C
• Dimensions: Approx. 32 × 22 mm

Applications

• LPG gas leak detection systems
• Smoke detection and alarm projects
• Smart home safety systems
• Industrial gas monitoring
• Fire warning systems
• IoT-based environmental monitoring
• Kitchen and laboratory safety devices

Package Includes

• 1 × MQ-2 Gas Sensor Module