Gentex SR220 Smoke Detectors

The Gentex SR220 is a 220VAC, multi-criteria photoelectric smoke alarm designed for dependable early fire detection in residential and commercial living environments. It includes a 9V battery backup, a built-in auxiliary relay (Form A/Form C), tandem interconnect capability with compatible alarms, and a high-output audible horn rated at 85 dBA at 10 feet. The unit features advanced dual-wavelength smoke sensing and temperature detection to reduce nuisance alarms while providing fast fire warning.