Household LCD Digital Carbon Monoxide Detector CO Alarm CO Sensor Monitor

Features: The LCD shows CO concentr ation. Adopting high quality electrochemical CO sensor, it is more accurate, reliable and repeatable. Ultra bright LED display: flashing every 50 seconds to indicate standby status, fast flashing to indicate detector alarm. Loud high volume buzzer output, up to 85dB in 3 meters. Test Reset button to test the unit electronics and verifies proper unit operation and reset the unit during alarm. Green and red LED lights that indica te normal operation and alarm status Specification: Standby Current: less than 50uA Battery: 3pcs x 1.5V Battery (NOT included) Alarm Concentration: When the concentration is at 30ppm, the alarm w ill alarm within 120 minutes. When the concentration is at 50ppm, the alarm will alarm within 60 90 minutes. When the concentration is at 100ppm, the alarm will alarm within 10 40 minutes. When the concentration is at 300ppm, the alarm wi ll alarm within 3 minutes. Alarm Current: less than 75mA Size: Approx. 10*3.5cm 3.9*1.4inch Weight: Approx. 110g 3.9oz Package List: 1 x CO Alarm 2set x Screw .