MQ-2 Smoke Sensor Module (Combustible Gas/Smoke/LPG)

Overview: The Essential Sensor for Fire and Gas Leak Detection. The MQ-2 Smoke Sensor Module is an indispensable component for safety and security applications, particularly in homes and industrial settings in Bangladesh. This module is ABSOLUTELY ESSENTIAL because it detects a wide range of combustible gases and smoke, including LPG (Liquefied Petroleum Gas), Propane, Methane (Natural Gas), and Hydrogen. The module features a built-in heater and circuitry to provide both an ANALOG OUTPUT (for precise concentration measurement) and a DIGITAL OUTPUT (for simple threshold alarms). This makes it a TRUSTED SOLUTION for monitoring dangerous atmospheric conditions.

Description Summary. The MQ-2 Smoke Sensor Module (Combustible Gas/Smoke/LPG) is a sensor module essential for detecting smoke, LPG, propane, methane, and hydrogen, for fire safety and gas leak alarms.

Key Technical Specifications (Datasheet Snapshot). - COMPONENT TYPE: Gas Sensor (Semi-conductor type).

• TARGET GASES: Smoke, LPG, Propane, Methane, H2, Alcohol, and high sensitivity to LPG/Smoke.

• OUTPUT TYPE: DUAL OUTPUT - Analog (A0 for measuring concentration) and Digital (D0 for alarm threshold).

• HEATER VOLTAGE: Typically 5V DC (Required for the sensor element to function).

• SENSITIVITY: Adjustable via onboard potentiometer to set the digital alarm threshold.

• OPERATING TEMPERATURE: Wide range, typically $-10^\circ\text{C}$ to $50^\circ\text{C}$.

• INTERFACE: Easy to connect to microcontrollers (Arduino, ESP32).

Applications: Safety and Alarm Systems. This sensor is expertly suited for: Building FIRE AND SMOKE ALARMS, creating LPG AND NATURAL GAS LEAK DETECTORS, integrating safety into INDUSTRIAL CONTROL SYSTEMS, and use in EDUCATIONAL KITS to teach safety monitoring principles.

Projectile Electronics Quality and Trust. We guarantee high-quality MQ-2 modules with reliable sensing capability, ensuring your safety and alarm systems are accurate and dependable. The MQ-2 is a TRUSTED SOLUTION for gas and fire safety. For any support or technical query, please contact Projectile Electronics at 01779-150816.

Package Includes: 1 × MQ-2 Smoke Sensor Module.