Kidde CarMono Alarm

This easy - to - install alarm is suitable for all living areas, UL listed, 2 AA Battery Operated included, provides protection even during power outages Battery Lockout System - Deters covering battery compartment without installation of batteries, Slide - out Battery Door Cover - makes access to batteries easy, Test / Reset Button - Tests for proper operation, and resets the CO alarm, Low Battery Signal, Green LED will flash once every 60 seconds to indicate the alarm is operating properly, Green LED will also flash before a CO reading is taken and when any button is pressed, Red LED - When a dangerous level of carbon monoxide is detected the red LED will pulse and a loud alarm pattern will sound, The carbon monoxide alarm pattern is 4 short beeps, followed by 5 seconds of silence, followed by 4 short beeps with a corresponding red LED flash, This cycle will continue for 4 minutes and then change to 1 cycle every minute until the device is reset or the CO is eliminated. Sensor:Electrochemical Audio AlarmHumidity Range:5%-95% relative humidity (RH)Size:4.5"L x 2.75"H x 1.5" DWiring:NoneInterconnects:No Type: Battery operated Weight: 0.5 lb.