Thermic detector of 78ºC fixed temperature for MorleyIAS analogical system. Recommended for fire detection in environment where occurs sudden temperature changes in a certain time periode. Easy directioning through two dedicated rotary switches. Includes two tricolor LEDs that allows to see the detector status from any position and a action indicator output. Includes a microswitch activable through a magnet to realize local test. Requires B501AP-IV base.