The 521NCSXT is a security photoelectric smoke detector from Interlogix which combines a sounder, a 2 wire smoke detector, a UL/cUL listing, a white color, and a 12/24VDC power source together to make a fully functioning and reliable unit. The 521NCSXT security smoke detector comes with an ABS plastic construction, an in-built sounder, a field replaceable optical chamber, plus in-built dust compensation, and the CleanMe® feature. This quality smoke detector contains self diagnostic features for notifying when a service is due, and is suitable for many types of business and residential dwellings.
- 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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