First Alert SC9120LBL Smoke and Carbon Monoxide Alarm, 10 ft, 85 dB, Alarm: Audible, Electrochemical Sensor, White

The First Alert SC9120LBL hardwired combination smoke/CO alarm connects directly to your home electrical system. In the event of a power outage, the smoke/CO alarm is equipped with a 10 years lithium battery backup. Integrating a smart technology system will reduce the likelihood of nuisance alarms triggering. A latching alarm Indication will remember which unit initiated an alarm. The perfect mount system features a gasket less base and a mounting bracket that keeps the alarm secure over a wide rotation range to allow for true alignment. Under normal conditions, you should not have to replace the battery for the life of the alarm.

California residents see Prop 65 WARNINGS