BRK Electronics First Alert GCO1B 120V AC Plug-in Explosive Gas/CO Combo Alarm

BRK Electronics First Alert HD6135F 120V AC/DC Hardwired Heat Alarm (Upgraded to HD6135FB)

BRK Electronics First Alert HD6135FB 120V AC/DC Hardwired with 9V Battery Backup Thermistor Heat Alarm

BRK Electronics First Alert Low Profile PR710B 10 Year Sealed Lithium Power Battery Operated Photoelectric Smoke Alarm

BRK Electronics First Alert PR700AB Low Profile 9V Alkaline Battery Operated Photoelectric Smoke Alarm

BRK Electronics First Alert PR700B Low Profile 9V Carbon Zinc Battery Operated Photoelectric Smoke Alarm

BRK Electronics First Alert PRC700B Low Profile 2 AA Batteries Operated Photoelectric Smoke Alarm and Carbon Monoxide Combo Alarm (Upgraded to SMCO210)

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 PRC710B Low Profile 10 Year Sealed Battery Operated Lithium Power Tamperproof Photoelectric Smoke and Carbon Monoxide Combo Alarm (Upgraded to SMCO210)

BRK Electronics First Alert RM4 120V AC Hardwired Smart Relay

BRK Electronics First Alert SA303B 9V DC Battery Operated Ionization Smoke Alarm (Upgraded to SMI100)

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

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

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

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