Generic MQ-2 Smoke LPG Butane Hydrogen Gas Sensor Module - 5V Analog/Digital Output
The Generic MQ-2 gas sensor module is a 5V-compatible combustible gas detector with analog and digital TTL outputs, designed for integration with Arduino, Raspberry Pi, and other microcontroller platforms. It provides a broad detection range for smoke, LPG, propane, hydrogen, and alcohol.
Features
- Broad-spectrum detection of combustible gases including LPG, propane, hydrogen, methane, smoke, and alcohol.
- Provides both analog (0-5V) and digital (TTL) output signals for flexible system integration.
- On-board sensitivity adjustment potentiometer for calibrating the digital trigger threshold.
- Simple 5V DC operation with a 20-second preheat time for stable readings.
- Compact PCB module format (36x20x21 mm) for easy prototyping and enclosure mounting.
Out of stock
The MQ-2 sensor module utilizes a tin oxide (SnO2) semiconductor sensing element whose conductivity increases in the presence of combustible gases. This change in conductivity is converted into an analog voltage signal proportional to gas concentration, while a comparator circuit provides a clean digital TTL output when a user-defined threshold is exceeded.
Designed for robustness in prototyping and light industrial applications, the module requires a brief preheat period for the sensing element to stabilize. Care should be taken to avoid prolonged exposure to water condensation, high humidity, or extreme gas concentrations to maintain long-term sensor performance and lifespan.
Additional Information
| Weight | 0.008 kg |
|---|---|
| Dimensions | 3.6 × 2 × 2.1 cm |
