Designed To Help Promote Household Safety, The First Alert Hardwired Smoke Alarm With 10-Year Battery Backup Can Provide Early Warning Of Fire. This Hardwired Smoke Detector Uses An Ionization Smoke Sensor To Reliably Detect Smoke From Hot, Fast-Flaming Fires.

▪ 120-Volt Hardwired Smoke Alarm Wires Directly Into Your Home'S Electrical System
▪ Ionization Smoke Sensor Reliably Detects Particles From Fast-Flaming Fires
▪ Hassle-Free Installation, No Need To Rewire
▪ 10-Year Battery Backup For Protection During Power Outages
▪ Can Integrate With Up To 12 Other First Alert Or Brk Hardwired Smoke Detectors
▪ Mfg #9120LBLA