Digital LED display shows the level of carbon monoxide the CO alarm is sensing
Test-Hush Button makes testing the detector or silencing false alarms easy
Extension cord (included) allows for placement on a table or shelf
9-volt battery backup provides protection during a power outage
UL Listed with a 10-year limited warranty which begins when the alarm is powered on, if that date is unknown it should be assumed the alarm should be replaced.
Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
85-decibel alarm announces when carbon monoxide is detected
Simplified Installation - just connect to a regular, 120V socket in your residence