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 most conventional 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 5 seconds. When the detector senses smoke or heat goes into pre-alarm sensitivity the LEDs will flash red every 1 second. When the detector senses smoke or heat goes into alarm the LEDs will latch on red. The alarm can be reset only by a momentary power interruption. The detectors meets the requirements of the EN54-5&7 standards and were got the certification by Intertek