Best Battery Operated Smoke Detector

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

First Alert PR700A Slim Series Battery Powered Photoelectric Smoke Alarm

DYWL SECURITY Carbon Monoxide Detectors Portable Carbon Monoxide Detector for Travel Carbon Monoxide Detector Plug in Wall with LED Digital Display Voice Light Plug and Play - 2Pack

First Alert SC9120BA Hardwire Combination Carbon Monoxide and Smoke Alarm

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

First Alert 9120BA Hardwire Smoke Alarm w/ 9V Battery, Smoke Detector

Combination Smoke and Carbon Monoxide Detector Alarm, Beeps Warning Smoke Co Alarm Clock for Travel Home Bedroom Living Room Basement Attics Cars, Battery Operated, Comply with UL 217/UL 2034, 1 Pack

FIRST ALERT Smoke and CO Alarm, SC7010BA, White

First Alert CO400A Battery Powered Carbon Monoxide Alarm

Carbon Monoxide Detector,CO Alarm Detector with Digital Display and Sound Alarm for Home 2pcs