MQ-2 Smoke & Combustible Gas Sensor Module

Specification: The MQ-2 Smoke and Combustible Gas Sensor Module is a metal-oxide semiconductor sensor designed to detect the presence of liquefied petroleum gas (LPG), propane, methane, hydrogen, and smoke in the air. In a laboratory setting, it is primarily used for safety monitoring, environmental testing, and as a low-cost component for gas leak detection prototypes.

Technical Specifications:
* Target gases: LPG, Propane, Methane, Hydrogen, Smoke
* Concentration range: 300 to 10,000 ppm
* Operating voltage: 5V DC
* Heating voltage: 5V ± 0.2V
* Output signals: Analog (AO) and Digital (DO)
* Interface: 4-pin header (VCC, GND, DO, AO)
* Adjustable sensitivity via onboard potentiometer
* Heater resistance: 33Ω ± 5%
* Operating temperature: -10°C to 50°C
Dimension: 22.5x32.5x23mm
Package: 86*92mm
Weight: 8gm