Features: 1.Excellent Performance: The gas sensor has high sensitivity, no false alarm, put an end to omission, strong anti interference, stable and reliable. 2.Function: This gas detector mainly used to detect the natural gas and LPG leakage, prevent the potential gas explosion and protect family safety. 3.Louder Sound: When the gas concentration is over a certain range, the gas alarm will make a continue sound louder than 85db. 4.Easy Installation: Easy to install, direct install gas detector in an appropriate position and switch on the power supply. 5.Widely Use: Gas alarm can be used alone, networked with the system, or connected with exhaust fan, solenoid valve audible and visual alarm, etc. Specification: Item Type: Gas Alarm_x000D_ Material: ABS_x000D_ Purpose: Household_x000D_ _x000D_ Operating Voltage: 12V_x000D_ Preheating Time: About 60 seconds_x000D_ Alarm Concentration: 10%LEL_x000D_ Alarm Indicator Light: Fashing red_x000D_ Alarm Sound Pressure: 85dB/m_x000D_ Mounting Method: Wall hanging_x000D_ Operating Temperature: -10 - 50_x000D_ Alarm Mode: Sound and light alarm, network output PackageList: 1 x_x000D_ _x000D_ GasAlarm 2 x Screw 2 xExpansion Tube 1 xDead Plate 1 x Instructions