1.Gas indicated: Natural gas, LPG ect. combustible gas

2.Sensitivity:Min: Propane 500ppm ;Natural gas 100ppm Max: 6500PPM                                      

3.Working conditions: Temp:-4~131F(-20~55C);Hum: <95%RH

4.Working current:200mA

5.Power Source: DC3V(two 1.5V AA battery)

6.Response time:<5s

7.Alarm method：visual and andible alarm（Sound:>65dB）