First Alert BRK Battery-operated Carbon Monoxide Detector 6 -Pack

The First Alert BRK CO400B6CP Carbon Monoxide Detector 6-Pack provides dependable CO protection for multiple rooms, floors, or properties. Each battery-operated alarm features an electrochemical sensor, loud 85-decibel warning horn, test and silence button, low-battery alert, and end-of-life warning. The replaceable 9V battery design requires no hardwiring and continues monitoring during power outages. Product details were verified through First Alert and BRK’s official product information.