First Alert BRK SC-9120B Hardwired Smoke And Carbon Monoxide (CO) Detector With Battery Backup

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

First Alert SC-9120B Hardwired Smoke And Carbon Monoxide Alarm With Battery Backup 2 Pack

First Alert SMCO210, 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm With Slim Profile Design, 1-Pack

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

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

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

First Alert Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector With Battery Backup And Voice & Location Alerts, SMCO100V-AC, 3-

FIRST ALERT BRK SC9120B-3 Hardwired Smoke And Carbon Monoxide (CO) Detector With Battery Backup, White, Pack Of 3

First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm With Battery Backup - 3 Pack

FIRST ALERT Combination Explosive Gas And Carbon Monoxide Alarm With Backlit Digital Display, GCO1CN