First Alert Plug-in Electrochemical Carbon Monoxide Detector

This First Alert plug-in carbon monoxide alarm easily plugs into any standard outlet with no additional mounting necessary. Mute button silences any nuisance alarms. Single button also tests alarm functions. Utilizes electrochemical sensor for increased accuracy. 7-year limited warranty. Meets UL standards. What's Included: Alarm, manualAC plug-in carbon monoxide detector keeps your home and family safe from toxic carbon monoxideAdvanced electrochemical carbon monoxide sensor.Simple plug-in design works with 120-volt outlets.Loud 85-decibel alarm sounds when CO levels are elevated.Single test/silence button for simple operation.