First Alert Plug-In 120V Electrochemical Easy To Read Digital Display Carbon Monoxide Alarm Brand_Rain-X covers a 3' x 3'

covers a 3' x 3' plant

Innovative

95 in F Dimension 1

excellent stain blocking resistance

plastics and solid surfaces

First Alert Plug-In 120V Electrochemical Easy To Read Digital Display Carbon Monoxide Alarm Brand_Rain-X covers a 3' x 3'Electrochemical 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