First Alert 1046848 Interconnect Hardwire Smoke Alarm with 10-Year Battery Backup Furnace Duct Patented double lock ensures 50%

Patented double lock ensures 50% greater tensile strength

-Medium dimensions: 2

interior wood stain

000 per second switching speed

First Alert 1046848 Interconnect Hardwire Smoke Alarm with 10-Year Battery Backup Furnace Duct Patented double lock ensures 50%Works with SC5 Smart Alarm Interconnect multiple First Alert SMI105 AC Smoke Alarms together to help provide an early warning throughout your whole home and have peace of mind knowing the 10 year battery backup provides continuous protection in the event of a power outage. First Alert's Precision Detection advanced sensing technology complies with the latest industry standards to reduce cooking nuisance alarms and provides early warning in the event