The First Alert plug in carbon monoxide detector easily plugs into any standard outlet with no additional mounting necessary. Mute button silences any nuisance alarms. Single button also tests detector functions. This detector utilizes an electrochemical sensor for increased accuracy. 5-year limited warranty. Meets UL standards. Plug-in Alarm Easy-to-use Mute Button
Uses Electrochemical Carbon Monoxide Sensor The Most Accurate Technology Available