Firex i4618 (21007581) AC Smoke Alarm with Battery Back-up and False Alarm Control

Firex 120-1072B AC Smoke Alarm with Battery Back-up and False Alarm Control

Firex 4618 AC Smoke Alarm with Battery Back-up and False Alarm Control (Upgraded to REPL-KIT)

BRK Electronics First Alert 4120B 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm (Upgraded to SMI100-AC)

Firex 120-538B AC Smoke Alarm with Battery Back-up and False Alarm Control

BRK Electronics First Alert 86RAC 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm (Upgraded to SMI100-AC)

Kidde i4618AC Firex Hardwired Smoke Alarm with Battery Backup

BRK Electronics First Alert 4120 120V AC Hardwired Ionization Smoke Alarm (Upgraded to SMI100-AC)

Firex 120-1072C AC Smoke Alarm with Battery Back-up and False Alarm Control

BRK Electronics First Alert 4919 120V AC Hardwired Ionization Smoke Alarm (Replaced by BRK SMI100-AC)

BRK Electronics First Alert 4120SB 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm and Silence Button (Upgraded to SMI100-AC)

Firex 120-1070 AC Smoke Alarm with Battery Back-up and False Alarm Control

Firex 120-1070B AC Smoke Alarm with Battery Back-up and False Alarm Control

Firex i5000 (21007582) 120V AC Direct Wire Smoke Alarm with Alkaline Battery Back-up and False Alarm Control (Upgraded to SMACFEX-20-9003)

Firex 120-1182 AC Smoke Alarm with Battery Back-up and False Alarm Control

Firex FADC AC Smoke Alarm with Battery Back-up and False Alarm Control