Addressed Optical Smoke Detector With Isolator 41RFU000The 41RFU000 detector is an optical Tyndall-effect smoke detector with built-in isolator. The digital signal processing algorithms make it particularly sensitive to detecting smoke, even in the early stages of a fire breaking out. Microprocessor-controlled digital signal analysis. Dirt level auto-compensation and maintenance indication. Programmable sensitivity across three levels. Low-profile design. High-visibility light indications. Addressing method with auto-acquisition or with programmer. Built-in isolator. Approved to EN 54-7 and EN 54-17.