First Alert 9120B Smoke Detector

Multiple station smoke alarms specifically designed for residential and commercial use Redesigned cover, metal sensing chamber and new integrated circuit work together to reduce nuisance alarms Perfect mount system features a gasket less base and mounting bracket that keeps the alarm secure over a wide rotation range to allow for true alignment Single button test and silence eliminates confusion

First Alert 9120B Smoke Detector Input Voltage: 120 V AC Packaged Quantity: 6 Input Voltage: 120 V AC Packaged Quantity: 6 Form Factor: Wall Mount Form Factor: Wall Mount Diameter: 5.6" Sensing Technology: Ionize Diameter: 5.6" Sensing Technology: Ionize