FIRST ALERT BRK 9120LBL Hardwired Smoke Detector with Battery Backup

First Alert BRK SC9120LBL Hardwired AC Smoke and Carbon Monoxide (CO) Detector with 10 Year Sealed Battery Backup

First Alert Smoke Detector and Carbon Monoxide Detector Alarm | Hardwired with Battery Backup, BRK SC9120B

First Alert 0827B 10-Year Tamper Resistant Smoke Alarm, White

Kidde P4010ACSCO AC Hardwired Combination (1) Carbon Monoxide & Photoelectric Smoke Alarm

First Alert Smoke Detector and Carbon Monoxide Detector Alarm with Built-In 10-Year Battery, BRK PRC710

First Alert 9120LBL Smoke Alarm

BRK RM4 Smart Relay for First Alert

First Alert BRK 7010B Hardwire Smoke Alarm with Photoelectric Sensor and Battery Backup

First Alert BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup 3 Pack