System Sensor Smoke Alarm: Smoke, Hardwired, Smoke Detector, Photoelectric, Hardwired Model: 2W-B

Kidde Hardwired Carbon Monoxide Detector With 9-Volt Battery Backup, Digital LED Display 5.75 Diameter X 1.8 Depth

First Alert Smoke Alarm, 10-Year Sealed Battery Dual Sensor Detector With Test & Silence Button, SM310, 1-Pack

Kidde Hardwired Smoke Detector, 10-Year Battery Backup, Interconnectable, LED Warning Light Indicators, 4 Pack

System Sensor Smoke Alarm: Smoke, Hardwired, Smoke Detector, Photoelectric, Hardwired, Round, 3 Yr Model: 4WTA-B

System Sensor Duct Smoke Detector: 120V AC/24V AC/DC Volt, Sound Alert, Duct Mount, 5 in Overall Ht Model: D4120

BRK 9120B Hardwired 120V Ionization Smoke Alarm With 9V Battery NEW

USI Sensing Plus Combo Smoke, Fire & CO Alarm, Sealed Battery (USI AMIC3511SB)

10-Year Battery Powered Smoke And Fire Detector With Ionization Sensor

Hardwired And 10-Year Battery Backup Smoke Detector With Ionization Sensor

Kidde KN-COSM-IBA Hardwired 120V Electrochemical/Ionization Carbon Monoxide And Smoke Alarm

Combo Smoke And CO Detectors With Voice Alert, 10-Years Battery Powered Fire And Carbon Monoxide Alarm, Auto-Check,1Pack

Kidde Firex i4618 Hardwired 120V Ionization Smoke Alarm

Firex i4618 (21007581) AC Smoke Alarm With Battery Back-Up And False Alarm Control (Upgraded To SMACFEX-20-9003)

First Alert 10-Year Sealed Battery Ionization Smoke Alarm

Usi 3-In-1 Tamper Proof Smoke, Fire, And Carbon Monoxide Smart Alarm With 10 Year Sealed Battery Back-Up, Hardwired

Nest Protect 2nd Gen Wired Smoke And Carbon Monoxide Alarm, White

X-Sense Smart Carbon Monoxide Detector Smoke Detector With Replaceable, Wi-Fi Smoke And Carbon Monoxide Alarm With Real-Time App Notifications, Sc07-W

System Sensor 2W-B Photoelectric i3 Smoke Detector, 2-Wire