REZI

Resideo Technologies, Inc.

One of the world's largest makers of home comfort and safety gear, spun off from Honeywell in 2018. Under the Honeywell Home and First Alert brands it sells thermostats, HVAC controls, and smoke and carbon monoxide alarms used by homeowners and professional contractors. Its name comes from the Latin "residere," meaning "to dwell" or "to remain" — a nod to the home. First Alert's roots trace to BRK Electronics, founded in 1958, which made some of the first residential smoke alarms.