The 521NCRXT is a security photoelectric smoke detector from Interlogix that incorporates a 2 wire smoke detector, an auxiliary relay, a UL/cUL listing, and a 12/24VDC power source. The 521NCRXT security photoelectric detector comes with patented CleanMe® features, a dust compensation that is in-built into the system, a field replacement for the optical chamber, plus a sounder that is also in-built into the system. This quality grade smoke detector meets the code requirement for residential use, plus has options for including isolated heat sensors, and auxiliary relays.
- Built-in sounder available in two- and four-wire models
- Patented CleanMe® feature
- Built-in dust compensation
- Field-replaceable optical chamber
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