Carbon Monoxide Detector(CO detector), use of high quality electrochemical sensors, combined with advanced electronic technology and sophisticated technology made of a stable work, long life and other advantages; can be placed on the ceiling or wall mount and other installation methods, simple installation, easy to use; Where carbon monoxide gas is present, once the concentration of carbon monoxide gas reaches the alarm setting value, the detector will emit an audible and visual alarm signal to remind you to quickly take effective measures to effectively avoid the occurrence of ?1?7ire, explosion, suffocation, death and other malignancies. WARNING Exceeding the temperature and humidity allowable range may reduce or lose the detection function. MAIN SPECIFICATIONS Product name: Carbon Monoxide Detector Item No.: JKD-C620 Supply voltage: DC4.5V (31.5V DC PKCELL AA Battery) Battery low voltage: <3.6V Standby current: <10uA Alarm current: <70mA Standard: EN50291-1:2010+AI:2012 Gas detected: Carbon Monoxide (CO) Alarm concentration: 50ppmAlarm within 60~90min 110~40min 300ppmAlarm within 0~3min Operating environment: Humidity0~40 Relative humidity<95%No condensing Atmospheric pressure: 86kPa~106kPa; Indoor use type Sampling Method: Natural diffusion Method: SoundLighting Alarm Alarm volume: 85dB (1m) Sensors: Electrochemical sensor Max lifetime: 7years Type: B Weight: Around 195g