Kidde 40381 - 120 volt Smart Hush Smoke Alarm with Rear Load Battery Backup (9V Battery Included) (21006378 i12040)
$11.99
Kidde 120 volt - AC/DC - Hardwire - Smart Hush | Kidde Firex Smoke Alarm / Detector with Rear Load Battery Backup (9V Battery Included) (21006378 i12040 40