Features: High sensitivity and fast response, more reliable and practical in use. Low current consumption, with long standby time, and low battery prompt. With alarm memory function, can automatically detect sensor failure. Easy and simple to install, with large LCD digital display, more convenient and clearer to observe. Widely used in kitchens, industrial areas, office buildings, villas, hotels. It is very important to properly place the detector and clean it regularly. Clean the dust on the alarm every 2 months, to prevent the alarm from being blocked or clogged. Specification: Item Name: Gas leakage alarm Material: ABS plastic Voltage: 110~240v Plug Type: US Plug, EU Plug, UK Plug(Optional) Color: white Working voltage: AC110~230V, 50~60hz Static current: ≤0.5w Battery: 9V battery (Not included) Alarm current: ≤1w Warm-up time: about 180s Alarm concentration: 10% LEL Sensor: Catalytic combustion sensor LCD display: display alarm concentration, detected gas, power supply mode, cocoa gas(> 2% LEL start display) Indicator information: AC: Green indicator is always on Alarm: Red indicator is blinking Sensor failure: Yellow indicator is always on Buzzer sound pressure: ≥85dB/m Ambient temperature: -10 ° C ~ +50 ° C Package List: 1 * Gas Alarm Detector 1 * User Manual 1 * Mounting Set 1 * Pack of Screws 1、High sensitivity and fast response, more reliable and practical in use. 2、Low current consumption, with long standby time, and low battery prompt. 3、With alarm memory function, can automatically detect sensor failure. 4、Easy and simple to install, with large LCD digital display, more convenient and clearer to observe 5、Widely used in kitchens, industrial areas, office buildings, villas, hotels.