First Alert Smoke Alarm

First Alert BRK CO511 Carbon Monoxide (CO) Detector Wireless Interconnected with Voice and Location

First Alert Smoke Alarm

FIRST ALERT BRK SC9120B Hardwired Smoke and Carbon Monoxide Detector with Battery Backup and FIRST ALERT BRK9120b6CP Smoke Detector Alarm | Hardwired with Backup Battery

First Alert Smoke Alarm

FIRST ALERT Hardwired Wireless Smoke Alarm with Photoelectric Sensor and Battery Backup, SA521CN-3ST , White

First Alert Smoke Alarm

FIRST ALERT SC9120B Corded Electric Combination Alarm with Adapter Plugs for Easy Replacement