First Alert BRK Hardwired (with Battery Back-up) Ionization Interconnected Smoke Detector (6-Pack) Item #309595 | Model #27896 Less effort: On average using

Less effort: On average using DWAPVCIR attachment

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

hinge tension adjustment tool

Connection: 1/2 in

First Alert BRK Hardwired (with Battery Back-up) Ionization Interconnected Smoke Detector (6-Pack) Item #309595 | Model #27896 Less effort: On average using120V 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