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

BRK Electronics First Alert CO250B6CP 9V DC Battery Operated Tamper Resistant Electrochemical Carbon Monoxide (CO) Alarm - Contractor 6-Pack

BRK Electronics First Alert 9120B-48P 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm - Box 48-Pack (Upgraded to 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)

BRK Electronics First Alert 9120B-48B 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm - Saving 48-Pack (Upgraded to SMI100-AC)

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

BRK Electronics First Alert CO250LB 9V DC Lithium Battery Operated Tamper Resistant Electrochemical Carbon Monoxide (CO) Alarm

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

BRK Electronics First Alert CO250B 9V DC Battery Operated Tamper Resistant Electrochemical Carbon Monoxide (CO) Alarm

BRK Electronics First Alert SA4919 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm (Upgraded to SMI100-AC)

BRK Electronics First Alert SA4121C 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm (Upgraded to SMI100-AC)

BRK Electronics First Alert 8120BL 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm (Upgraded to SMI100-AC)

BRK Electronics First Alert 9120LB 120V AC/DC Hardwired with 9V Lithium Battery Backup Ionization Smoke Alarm (Upgraded to SMI105-AC)

BRK Electronics First Alert ADF Adaptor plugs to replace a Firex Smoke Alarm (pack of 1)

BRK Electronics First Alert FG250LB 9V DC Lithium Battery Operated Ionization Smoke Alarm

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 9120B6CP 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm - Contractor 6-Pack (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 4120B 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm (Upgraded to SMI100-AC)

BRK First Alert SM210V (1046757) 10-Year Battery Smoke Alarm with Voice Alerts

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

BRK Electronics First Alert SA4919C 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm (Upgraded to SMI100-AC)

BRK Electronics First Alert PRC700VB Low Profile 2 AA Batteries Operated Photoelectric Smoke Alarm and Carbon Monoxide Combo Alarm with Voice

BRK Electronics First Alert 2002RAC 120V AC/DC Hardwired with 9V Battery Backup Photoelectric Smoke Alarm (Upgraded to SM100V-AC)