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MQ-2 Gas & Smoke Sensor Module
$0.7000
In stock
SKU
SEN-16-022
Volume discounts:
- +50 4 % $0.6700
- +100 6 % $0.6600
- +300 9 % $0.6400
- +500 10 % $0.6300
- +1000 11 % $0.6200
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MQ-5 Methane LPG Liquid Propane Gas Sensor Module Previous 
The MQ-2 Gas & Smoke Sensor Module is a semiconductor-based sensor module for detecting flammable gases and smoke. It is designed for gas detection projects and safety-oriented electronics applications. The module supports detection of LPG, propane, methane, hydrogen, smoke, alcohol, and CO. It operates with a 5V DC input and provides analog output, with digital output available in some modules. The sensor uses a simple drive circuit and requires a preheat time before use.
Features of MQ-2 Gas & Smoke Sensor Module - 5V
- Semiconductor sensor type
- Detects LPG
- Detects propane
- Detects methane
- Detects hydrogen
- Detects smoke
- Detects alcohol
- Detects CO
- Analog output
- Digital output in some modules
- Simple drive circuit
- Low cost
- Long life
- High sensitivity to LPG, propane, and hydrogen
- Good sensitivity to combustible gas
Specifications of MQ-2 Gas & Smoke Sensor Module - 5V
- Sensor type: Semiconductor
- Detectable gases: LPG, Propane, Methane, Hydrogen, Smoke, Alcohol, CO
- Detection range: 300 – 10000 ppm
- Input voltage: 5V DC
- Heater power consumption: Up to 950mW
- Output: Analog (and digital in some modules)
- Preheat time: About 20 seconds
- Dimensions: 19x24.2mm
- Circuit Voltage: 5V
- Heating Resistance: 33 ± 5%
- Heating consumption: About 350mW
- Relative humidity: Less than 95%RH
How to Use MQ-2 Gas & Smoke Sensor Module - 5V
- Apply a 5V DC supply to the module.
- Allow the sensor to preheat before taking measurements.
- Read the analog output or the digital output on supported modules.
More Info
- The sensitive material is SnO2.
- The sensor conductivity changes with combustible gas concentration.
- It is suitable for domestic gas leakage detector, industrial combustible gas detector, and portable gas detector applications.
| Interface Type | Analog,Digital |
|---|---|
| Operating Voltage (V) | 5V |
| Operating Current (mA) | 70 - 190 mA |
| Dimensions (mm) | 19x24.2mm |
| Output Type | Analog Voltage, Digital |
| Measurement Range | 300 – 10000 ppm |
| Environmental Parameter | Gas |
| Probe Type | Resistive |
| Humidity Range | < 95%RH |
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