https://www.alarmgrid.com/products/2gig-ff100-345
2GIG FF100-345 - 345S Firefighter Smoke/Carbon Listener - Alarm Grid
The 2GIG FF100-345 is a 345 MHz wireless audio detector that listens for smoke and CO alarm patterns and reports them to a compatible system. Buy yours from...
firefightersmokecarbonlisteneralarm
https://2gig.com/product/2gig-smoke-heat-freeze-detector-8th-ed-ul/
345S Smoke, Heat, Freeze Detector | 2GIG
Apr 10, 2026 - The 2GIG Smoke Heat Freeze Detector has been designed to detect fire issues earlier, providing a more accurate and timely notice in the event of smoke or fire....
smokeheatfreezedetector