Infrared reflection optical linear smoke detection system Range between 5 and 50 meters. Possibility to extend the range from 50 to 120 mt. through long range reflex unit (TFBD-5000 LRK).Remote controller unit for the connection of up to 3 detection units. Motorized positioning system able to automatically align the beam. 24Vdc external power supply. IP65 protection for the controller. IP55 protection for the additional unit. EN 54.12 certified.