MQ-2 Gas / Smoke Sensor Module

MQ-2 Combustible Gas & Smoke Detection Sensor Module

The MQ-2 Gas Sensor Module utilizes SnO2 (tin dioxide) which has lower electrical conductivity in clean air and increases conductivity in the presence of combustible gases and smoke. Ideal for early fire hazard warnings and domestic gas leakage detection systems.

Key Features & Specifications:

• Target Gases: LPG, Propane, Methane, Butane, Hydrogen, Alcohol, and Smoke
• Operating Voltage: 5V DC
• Dual Outputs: Analog Output (AO) for precise concentration & Digital Output (DO) with onboard potentiometer trigger
• Detection Concentration: 300 to 10000 ppm (Combustible gas)
• Fast Response: Less than 10 seconds recovery time
• Status Indicators: Power LED and DO digital output LED

Applications:

• Home and industrial gas leak detector alarms (LPG / PNG)
• Smart IoT smoke detection and fire safety systems
• Air quality and environmental hazard monitoring