First Alert CO605 Carbon Monoxide Plug In Alarm, 85 db GiftItems As service entrance

As service entrance

Never Out battery - up to 12 hours of play

Dusk to dawn

24 hours for normal use

plunger and spring prevent part loss during maintenance

First Alert CO605 Carbon Monoxide Plug In Alarm, 85 db GiftItems As service entranceHighlights: For bedroom, hall or Basement 85 db alarm Two "AA" battery backup (included) Intelligent sensor reduces nuisance alarms Samples air every second Indicator power light Tin oxide sensor permanently stores highest C O reading Automatically performs internal test Low battery alarm & silencer Meets code in Illinois and Massachusetts Blister pack For bedroom, hall or Basement Plug in unit Silence mute button Test button Two "AA" battery backup