HALLWAY PLUG-IN CARBON MONOXIDE ALARM

Features 10 year sealed battery that does not need replacement. Digital display for clear daytime visibility that dims in dark conditions; Night Light/Escape Light with adjustable brightness levels auto-activates during low light conditions; Peak Level button displays the highest level of CO since last reset; Test/Reset button will test unit for proper operation & reset alarm. Unit alerts user to replace after 10 years.