BRK Electronics First Alert SA511 OneLink Wireless Battery Smoke Alarm with Voice (Upgraded to SM500V)

First Alert BRK SA4121B 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm and Silence Button (Upgraded to SMI100-AC)

BRK Electronics First Alert SA501 OneLink Wireless Battery Smoke Alarm with Voice (Upgraded to SM500V)

BRK Electronics First Alert SA500 OneLink Wireless Battery Smoke Alarm with Voice (Upgraded to SM500V)

First Alert BRK SA4919B 120V AC Hardwired Ionization Smoke Alarm (Upgraded to SMI100-AC)

First Alert BRK SA4120 120V AC Hardwired Ionization Smoke Alarm (Upgraded to SMI100-AC)

BRK Electronics First Alert SC9120LBL 120V AC/DC Hardwired with Lithium Battery Back Up and Locked Battery Drawer Ionization Smoke Alarm and Carbon Monoxide Combo Alarm (Upgraded to SMICO105-AC)

BRK Electronics First Alert SC7010BV 120V AC/DC Hardwired with 2 AA Batteries Backup Photoelectric Smoke Alarm and Carbon Monoxide Combo Alarm with Voice (Upgraded to SMCO100V-AC)

Kidde 20-9003 Quick Convert Adapter - Allows Installation of New Kidde Alarm in Old Kidde Wiring Harness

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

BRK Electronics SMCO600NV Battery Powered SC5 Smart Smoke & Carbon Monoxide Alarm

BRK Electronics SMCO600NV-AC Hardwired SC5 Smart Smoke & Carbon Monoxide Alarm

BRK Electronics First Alert RM4 120V AC Hardwired Smart Relay

BRK First Alert SMCO410 (1048325) Z-WAVE Plus Smart Smoke & CO Alarm works with Ring