First Alert Plug-In 120V Electrochemical Easy To Read Digital Display Carbon Monoxide Alarm Specialty Electronics Batteries No digging or chopping and

No digging or chopping and safe to use

5/8" x 50'

20" id x 2

Zinsser bulls eye 1-2-3

First Alert Plug-In 120V Electrochemical Easy To Read Digital Display Carbon Monoxide Alarm Specialty Electronics Batteries No digging or chopping andElectrochemical sensor Easy to read backlit digital display allows a quick view of current and peak CO levels. Plugs into any wall outlet and includes a battery back up for detection even during power outages EZ access battery door allows you to change batteries without having to dismount the alarm 5 decibel horn sounds if carbon monoxide levels are too high, and a test silence button silences the alarm and allows you to test its functionality