Easy Installation - simply plug-in to a standard, 120V outlet in your home
9-volt battery backup provides protection during a power outage
Digital LED display shows the level of carbon monoxide the CO alarm is sensing or states "GAS" when explosive gas is present
Test-Hush Button makes testing the detector or silencing false alarms easy
UL Listed with a lifespan of 7 years and a 5-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.
Extension cord (included) allows for placement on a table or shelf
85-decibel alarm announces when carbon monoxide or explosive gas is detected
Peak Level Memory shows the most recent detection of carbon monoxide or testing of the unit.