General This series detector can be used in all areas where photoelectric smoke detector,heat detector or multi detector is required. It is suited for fires ranging from smoldering to flaming fires. This series detectro is designed to provide open area protection and to be used with HST addressable fire alarm control panel. Two LEDs on each detector provide local 360° visible for indication of status. In the normal condition the LEDs flash red every scan time of panel. When the detector senses smoke and goes into alarm the LEDs will latch on red. The alarm can be reset by a instruction from addressable panel. The address of detector can be set location address by addressable programmer. The detectors meets the requirements of the EN54-5&7 standards and were got the certification by Intertek.