First Alert Sizelim Design Battery-Operated Combination Sizemoke & Carbon Monoxide Alarm - PRC700 (1039783)

First Alert BRK PRC700 Battery-Operated Smoke and Carbon Monoxide Alarm Keep your family safe with this battery-operated smoke and carbon monoxide alarm; battery-operated means constant monitoring, even if there's a power failure Features electrochemical Carbon Monoxide sensing technology and photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; helps minimize the number of false alarms A loud 85-decibel alarm sounds when Carbon Monoxide, and Smoke levels begin to rise Features a sleek, low-profile design to blend more fully into the wall and out of sight 2 AA Batteries included 7-year limited warranty; equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for safet Rigorously tested to meet UL standards