Winsen MQ-2 Smoke Gas Sensor Module
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.
SPECIFICATIONS
| Item Type: | Gas Sensor |
| Sensor Type: | Semiconductor |
| Model: | MQ-2 |
| Standard Encapsulation | Bakelite, Metal cap |
| Target Gases | Flammable gas, smoke gas sensor |
| Detecting Range: | 300~10000ppm(flammable gas) |
| Loop Voltage | ≤24V DC |
| Heater Voltage | 5.0V±0.1V AC or DC |
| Temperature and Humidity | 20+/-2C, 55%+/-5%RH |
| Output Voltage (V): | 2.5V~4.0V(in 2000ppmC3H8) |
| Load Resistance | Adjustable |
| Heater Resistance | 29Ω±3Ω(room tem.) |
| Sensitivity (dBm): | Ro(in air)/Rs(2000ppm C3H8)>5 |
| Length (mm): | 24 |
| Diameter (mm): | 19 |
| Weight (g): | 8 |
| Shipping Weight | 0.02 kg |
| Shipping Dimensions | 2 × 2 × 2 cm |