First Alert CO400 Carbon Monoxide (CO) Detector, Battery Operated Alarm, 1-Pack

Author: FIRST ALERTBrand: FIRST ALERTColor: WhiteFeatures: Keep your family safe with this easy to use, battery operated carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room.The alarm sequence should last 5-6 seconds. If it does not alarm, make sure fresh batteries are correctly installed, and test it again. If the unit still does not alarm, replace it immediately A loud 85 decibel alarm sounds when CO levels reach dangerous , Battery Replaceable - Yes To ensure complete protection make sure to place one on each level of your home and in each bedroom 5-year limited warranty; Equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety All first alert CO alarms are rigorously tested to meet UL standards First Alert has been t