First Alert Plug-In Carbon Monoxide Alarm

The First Alert Plug-In Carbon Monoxide Alarm uses an electrochemical carbon monoxide sensor for increased accuracy. It easily plugs into any standard outlet with no additional mounting necessary. The mute button silences any nuisance alarms while the single button also tests alarm functions. Meets UL standards.Carbon monoxide alarm Plug-in alarm - uses any standard 12V AC outlet with no additional mounting. Uses electrochemical carbon monoxide sensor, the most accurate technology available. Easy-to-use mute button End of life timer, alarm chirps when it is time to replace it Loud 85dB alarm Meets UL2034 standard