First Alert 1039939 Hardwired Smoke Alarm with with 10-Year Battery Backup Autumn_Cleaning 51" or 66" fully assembled

51" or 66" fully assembled

Cold drawn steel spindle with smoothly rolled threads

100 percent defect free

Includes two soft close attachments

First Alert 1039939 Hardwired Smoke Alarm with with 10-Year Battery Backup Autumn_Cleaning 51" or 66" fully assembledEnhance your household's fire safety and enjoy greater peace of mind with the First Alert hardwired smoke alarm with 10 year battery backup. Equipped with an ionization sensor, this 120 Volt hardwired smoke alarm reliably detects smoke from fast flaming fires and alerts you with an 85 dB alarm. Included adapter plugs eliminate the need for re wiring during installation, while a backup battery helps keep the unit running in case of a power outage.