1、High reliability sensor, automatically reset after alarm. 2、Use MCU processing to automatically detect sensor failures. 3、SMT design, high stability, safe and use it with confidence. 4、Widely used in restaurants, hospitals, hotels, oil plants, garages, gas stations, etc. 5、Reduce risks of gas explosion and protect safety of life and property. 1 x Gas Alarm 1 x Installation Buckle1 x Screw1 x Screw Cap1 x Manual  Condition: 100% Brand NewItem Type: Gas AlarmQuiescent Current: ≦90mA≦30mA (Low Power Consumption Type)Alarm Current: ≦100mA≦40mA (Low Power Consumption Type)Rated Power: ≦3WWarm-Up Time: About 180sAlarm Level: 100ppmAlarm Indicator: Red Led FlashesFault Indicator: Yellow Led is On, Buzzer Beeps LongSound Level: ≧85dB / mWorking Temperature: -10~+50℃Environmental Humidity: ≦95%Rh (No Condensation)Installation Method: Wall-MountedAlarm Output: Relay Output/Sound and Flash AlarmRadio Distance: 100m Open Area (Wireless Type)Operative Standard: Gb 15322.2-2003