Feature:1. Using lowcurrent gas sensors, equipped with builtin temperature compensation module, high sensitivity. Sound and light alarm remote guarding.2. Stable operation under the temperature condition of 10 to 55, accurate alarm, prevent gas accidents, and ensure the safety of electricity use.3. When the gas leak reaches the alarm site value, the hummer will emit a 72dB highdecibel "yuyu" sound, the red light of the alarm will flash, and the alarm information will be sent to the user APP.4. Receive alerts anytime and anywhere, deal with dangers in a timely and efficient manner with higher working work efficiently, and guard your safety at all times.5. Simple and versatile, suitable for family residences, apartments, restaurants and other places prone to gas leakage, to protect the safety of you and your family at all times.Specification:Item Type: Gas DetectorMaterial: ABSPower Supply Voltage: US AC 100-240VDetection Gas: Natural Gas / MethaneWorking Temperature: 0~+55Alarm Concentration: 8% LEL methane (natural gas)Concentration Error: 3%LELAlarm Mode: Sound and light alarm, wireless network alarm.Package List:1 x Gas Sensor1 x Tape1 x Plug2 x Expansion Tube2 x ScrewNote:1. The detector should be installed in a room with combustible gas/methane equipment;2. Do not install outdoors;3. Do not install in a place where the temperature is below 0 or exceeds +55 ;4. Do not install in a place directly affected by the heat, water vapor, and oil smoke generated by gas appliances (such as directly above the gas stove);5. There should be no barriers between the detector and the gas equipment to prevent the detector from being in contact with the gas to be measured;6. Do not install in places with high air flow, such as air intakes, ventilation fans, windows, and doors, to avoid the detector being inaccessible to the gas to be measured due to air flow;7. Make sure that the connected power socket is energized and in good contact;8. It is recommended to use the screw installation method. If the accident and safety accident caused by the pasting installation method are used, the user must bear the responsibility;9. When using the paste installation method, ensure that the surface in contact with the doublesided tape is smooth, flat, dry and clean;10. When using the paste installation method, you must regularly check whether the detector is pasted firmly.