First Alert Interconnect Hard-Wired w/Battery Back-up Ionization Smoke Detector 1 pk

The First Alert SMI105-AC Interconnect Hardwire Smoke Alarm with 10-Year Battery Backup uses First Alert's Precision Detection advanced sensing technology and meets new industry standards. Interconnect multiple alarms together to help provide an early warning throughout your whole home.

Product Features:

• First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
• 10-Year battery backup provides continuous protection during power outages
• Through early warning interconnect, when one alarm sounds, all compatible alarms will sound
• Alarm indicator visually identifies the unit that initiated the alarm