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.
Applications
It is widely used in domestic gas leakage alarms, industrial flammable gas alarms, and portable gas detectors.
Features
Responsive to a wide range of gases
Compatible with 5V
Cost-efficient
Specification
| 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 |
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