Product added to cart
MQ-2 Smoke Gas LPG Butane Methane Sensor Module
$0.9900
In stock
SKU
SEN-16-012
Volume discounts:
- +50 4 % $0.9500
- +100 6 % $0.9300
- +300 8 % $0.9100
- +500 10 % $0.8900
- +1000 12 % $0.8700
Product Variations:
Ships in 2-3 business days, then:
Free delivery in 12-15 days by Tracked Economic Shipping on orders over $100.
Free delivery in 7-10 days by Express Shipping on orders over $300.
More shipping info
Shop with confidence Learn More
MQ-135 Air Quality and Hazardous Gas Sensor Module Previous 
MQ-2 Smoke Gas LPG Butane Methane Sensor Module is a gas and smoke sensor module for monitoring combustible gases and smoke. It features an internal heater and an electrochemical sensor structure. The module is sensitive to methane, butane, LPG, and smoke. It is designed for use at room temperature and can be calibrated when the gas concentration is known. The heater operates at 5V, and the module includes both analog and digital outputs. This sensor module is suitable for Arduino-based electronics and smoke or fire alert projects.
Features of MQ-2 Smoke Gas LPG Butane Methane Sensor Module
- Sensitive to methane, butane, LPG, and smoke
- Internal heater design
- Analog and digital outputs
- Potentiometer output adjustment
- 20s preheating time
- 5V heater operation
Specifications of MQ-2 Smoke Gas LPG Butane Methane Sensor Module
- Input voltage: 5V
- Analog output (AO): 0~5V
- Digital output (DO): 0V or 5V
- Output switching level adjustable via potentiometer
- Preheating time: 20s
- Current consumption: 150mA
- AO output: 0.1-0.3V
- Highest concentration voltage: about 4V
- Dimensions: 32x20x22mm
How to Use MQ-2 Smoke Gas LPG Butane Methane Sensor Module
- Connect the module to a 5V power supply.
- Allow the sensor to preheat for 20 seconds.
- Read the AO or DO output based on your application.
More Info
- Calibration requires knowing the gas concentration.
- Care is needed when connecting the pins for the first time.
| Interface Type | Digital, Analog |
|---|---|
| Operating Voltage (V) | 5V |
| Operating Current (mA) | 150 |
| Dimensions (mm) | 32x20x22mm |
| Output Type | Analog Voltage, Digital |
| Biometric Parameter | Gas Concentration |
| Application | Fire detection and alarm |
| Target Gas | Hydrogen, Methane, Alcohol, smoke, Butane, LPG |
| Sensor Type | MOX gas sensors |
Write Your Own Review
Please complete your information below to login.
Sign In
Create New Account