Best Hardwired Smoke Detector

First Alert 9120B Smoke Detector, Hardwired Alarm with Battery Backup, 6-Pack

FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White

Kidde Hardwired Smoke Detector, 10-Year Battery Backup, Interconnectable, LED Warning Light Indicators

Smoke Detector, Hardwired Interconnected Smoke Detectors, Smoke Alarm with Replaceable 9V Battery, Interconnects Up to 12 Fire Alarms Smoke Detectors, Photoelectric Fire Alarm with Test/Silence Button

X-Sense Hardwired Combination Smoke and Carbon Monoxide Detector, Hardwired Interconnected Smoke and CO Detector Alarm with Replaceable Battery Backup, XP04, 3-Pack

First Alert SMI105-AC, Interconnect Hardwire Smoke Alarm with 10-Year Battery Backup, 1-Pack

Kidde Smoke Detector, Hardwired Smoke Alarm with Battery Backup, Front-Load Battery Door, Test-Silence Button, 1 Pack

First Alert BRK 3120B Hardwired Photoelectric and Ionization Smoke Alarm with Battery Backup, Dual Sensing Smoke Alarm, 1-Pack

Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup, Interconnectable, LED Warning Light Indicators, 2 Count (Pack of 1)

First Alert BRK 7010B Hardwired Smoke Detector with Photoelectric Sensor and Battery Backup , White