First Alert Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector With Battery Backup, SMICO100-AC, 1-Pack

First Alert Interconnect Hardwire Smoke Alarm With Battery Backup & Voice Alerts, 6-Pack

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

First Alert SMCO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm - 3 Pack

First Alert SMICO105-AC, Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm With 10-Year Battery Backup, 3-Pack

First Alert BRK SC-9120B Xrhsew Hardwired Smoke And Carbon Monoxide Alarm With Battery Backup, 4 Units

First Alert SM500V, Interconnect Battery-Operated Smoke Alarm With Voice Alerts, 1-Pack

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

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

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

First Alert SMICO110, 10-Year Battery Combination Smoke & Carbon Monoxide Alarm, 1-Pack

First Alert BRK 9120B Hardwired Smoke Alarm With Battery Backup (3)

Smoke Detector And Carbon Monoxide Detector Combo With LED Indicators, 2 in 1 CO & Smoke Alarm, Battery Operated Smoke And Carbon Monoxide Detectors 3

First Alert Combination Smoke & Carbon Monoxide Alarm, Battery-Operated Detector With Slim Profile Design, SMCO200, 1-Pack