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Kidde Smoke Detector, Hardwired with Battery Backup & Interconnect, Battery Included

First Alert SC9120A Hardwire Smoke & Carbon Monoxide Alarm

Combination Smoke and Carbon Monoxide Detector Alarm, 2-Pack Beeps Warning Smoke and CO Alarms for Basements Travel Home Office House Bedroom Living Room Car, Battery Operated, Comply with UL 217/2034

First Alert PR700A Slim Series Battery Powered Photoelectric Smoke Alarm

FIRST ALERT Smoke and CO Alarm, SC7010BA, White

Kidde I12040CA 120V AC (Hardwired) Ionization Smoke Alarm with 9V Battery Backup and Hush Button, White

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Kidde P3010CU Photoelectric Smoke & Carbon Monoxide Alarm with Voice Warning System

Kidde P4010ACLEDSCOCA 120 VAC Integrated 3-in-1 LED Strobe and 10-Year Talking Smoke & CO Alarm