BRK Electronics First Alert 9120B 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm (Upgraded to SMI100-AC)

First Alert 9120B 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm (Upgraded to SMI100-AC)

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

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

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

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

BRK Electronics First Alert 7010BSL 120V AC/DC Hardwired with Two AAA Battery Backup Photoelectric Smoke Alarm with Integrated Strobe Light (Upgraded to SM110LED-AC)

BRK Electronics First Alert 7020BSL 120V AC/DC Hardwired Photoelectric Smoke Alarm with Integrated Strobe Light and 10-Year Sealed Battery Back Up (Upgraded to SM110LED-AC)

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

BRK Electronics First Alert 7010B 120V AC/DC Hardwired with 9V Battery Backup Photoelectric Smoke Alarm (Upgraded to SM100V-AC)

BRK Electronics First Alert 9120LBL 120V AC/DC Hardwired with Lithium Battery Back Up and Locked Battery Drawer Ionization Smoke Alarm (Upgraded to SMI105-AC)

BRK Electronics First Alert 7030BSL 120V AC/DC Hardwired Smoke & Carbon Monoxide Alarm with LED Strobe and 10-Year Sealed Lithium Battery Backup (Upgraded to SMCO110LED-AC)

BRK Electronics First Alert FG250B 9V DC Battery Operated Ionization Smoke Alarm (Upgraded to SMI100)

BRK Electronics First Alert SA350B 10 Year sealed Lithium Battery Powercell Operated Dual Ionization Smoke Alarm (Upgraded to SMI110)

BRK Electronics First Alert 9120B6CP 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm - Contractor 6-Pack (Upgraded to SMI100-AC)

BRK Electronics First Alert SA3210 Dual Sensor DC 10-Year Sealed Lithium Battery Powered Photoelectric and Ionization Smoke Alarm (Upgraded to SM310)