The detector comes with a independent controller device which permits engineers to Fee, observe and maintain from ground degree. Detection selection is 70 m with the conventional device, expanding to 140 m or 160 m Using the addition in the medium or extended-range reflector kits. The FSP-951 photoelectric detector’s distinctive https://www.firesense.co.uk/type/addressable-fire-system/addressable-beam-detectors/