Best First Alert Alarm Clocks

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

First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White

First Alert 9120B Smoke Detector, Hardwired Alarm with Battery Backup, 3-Pack

Projection Digital Alarm Clock with Bed Shaker for Bedroom, Extra Loud Alarm Clock for Heavy Sleeper, 180° Rotable Ceiling Projector Clock,2 Alarm,5 Dimmer Volume,USB Charger, Battery Backup,12/24H…

First Alert SA320FF Dual-Sensor Smoke and Fire Alarm, Battery Powered, Frustration-Free Packaging, White , 1 Pack

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

First Alert 2-in-1 Z-Wave Wireless Smoke Detector & Carbon Monoxide Alarm, Battery Operated

First Alert Slim Photoelectric Smoke Alarm with 10-Year Sealed Battery, PR710, White

First Alert Powered Alarm SCO5CN Combination Smoke and Carbon Monoxide Detector, Battery Operated, 1 Pack, White

First Alert 0827B Ionization Smoke Alarm with 10-Year Sealed Tamper-Proof Battery , White , Pack of 1