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Winsen MQ-2 Smoke Sensor is an original and brand new smoke and propane gas sensor. With a long lifespan and low price, for domestic gas leakage and flammable gas alarm use.
The sensitive material of the MQ-2 gas sensor is SnO2, which with lower conductivity in clean air. When the target flammable gas exists, the sensor’s conductivity gets higher along with the gas concentration rising. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit.
MQ-2 gas sensor has a high sensitivity to propane and smoke, also can detect natural gas and other flammable steam well. It is at low cost and suitable for different applications of detecting kinds of flammable gases.
Specifications
| Model Type | MQ-2 |
| Sensor Type | Semiconductor |
| Standard Encapsulation | Bakelite, Metal cap |
| Target Gas | Flammable gas, smoke gas sensor |
| Detecting Range | 300～10000ppm(flammable gas) |
| Loop Voltage (Vc) | ≤24V DC |
| Heater Voltage (VH) | 5.0V±0.1V AC or DC |
| Tem. Humidity: | 20+/-2C, 55%+/-5%RH |
| Output Voltage | 2.5V~4.0V(in 2000ppmC3H8) |
| Load Resistance | Adjustable |
| Heater Resistance | 29Ω±3Ω（room tem.） |
| Sensitivity | Ro(in air)/Rs(2000ppm C3H8)>5 |
| Length (mm) | 24 |
| Diameter (mm) | 19 |
| Weight (gm) | 8 |
| Shipment Weight | 0.02 kg |
Features:
- Responsive to a wide range of gases
- Compatible with 5V
- Cost-efficient
Package Includes:
- 1 x Winsen MQ-2- Smoke Sensor
