NEW BRK First Alert SMI100-AC Smoke Alarm Direct Wire In With 9V Battery Backup

First Alert Battery Powered Smoke/Fire Detector Alarm SA10YRCL Ionization Tech

First Alert Battery Powered Smoke Alarm With Voice Alert

Vintage First Alert Battery Powered Smoke/Fire Detector Alarm SA92LT NOS 1994

First Alert BRK SC9120B 120v Smoke/Carbon Monoxide CO Detector w/mounting base

Vintage First Alert Battery Powered Smoke/Fire Detector Alarm SA92LT NOS 1994

First Alert Smoke Alarm, Battery-Operated Detector with Test & 1-Pack, White

First Alert Battery Powered Smoke Detector Alarm SA10YRCL