First Alert CO605 CO Plug In Model with 9V Battery Backup

The First Alert CO605A Plug-In Carbon Monoxide Detector offers reliable protection for your family with its electrochemical sensor and 85-decibel alarm. This detector easily plugs into any standard outlet without the need for mounting. It features a battery backup for continuous monitoring during power failures. The one-button design silences nuisance alarms and tests the unit’s functions. An end-of-life signal alerts you when it’s time to replace the detector. For optimal safety, install units on multiple levels and in each bedroom.