First Alert BRK Hardwired (with Battery Back-up) Ionization Interconnected Smoke Detector (6-Pack) Item #309595 | Model #27896 Connection: 1/2 in

Connection: 1/2 in

full-length neutral bars and self-adjusting dead-front cover

Do Not Use Water Hook-Up Kits for Potable (Drinkable) Water Applications

Universal connection compatible with ice and earth bits for added versatility

A great way to convert your current chime into a doorbell of the hearing impaired and deaf

First Alert BRK Hardwired (with Battery Back-up) Ionization Interconnected Smoke Detector (6-Pack) Item #309595 | Model #27896 Connection: 1/2 in120V AC DC Interconnectable Ionization Smoke Alarm w Carbon Zinc Battery Backup (6 Pack) Precision Detection technology helps reduce cooking nuisance alarms and provides early warning. Interconnects with most First Alert and BRK alarms so when one sounds, all compatible alarms sound to provide an early warning Battery backup provides continuous protection during power outages Perfect mount bracket keeps the alarm secure over a wide rotation range for