Notifier NFX-OPT-IV Smoke Detector Analog Addressable Optical

The Notifier NFX-OPT-IV is a high-performance analogue addressable optical smoke detector built on Notifier’s advanced Opal series protocol platform. Engineered as a direct replacement for legacy models such as the SDX-751EM, the NFX-OPT-IV provides 100% mechanical and electrical backward compatibility with existing Notifier control panels including the ID3000, ID2000, ID50, and ID60 series. Its redesigned optical chamber improves responsiveness to smoldering fires while using digital filtering algorithms to resist dust accumulation, insect ingress, and ambient transient noise. Equipped with dual multi-color status LEDs providing 360-degree visual indication, mechanical decade rotary switches for simple physical addressing, and LPCB approval, the detector is housed in an Ivory finish designed to blend seamlessly with existing building installations.