The beam operates totally on the principle of light obscuration applying infrared. The OSI-RI detector is actually a merged transmitter/receiver that may be right linked to an intelligent detector circuit in LiteSpeed® or CLIP method. The FSP-951 photoelectric detector’s special optical sensing chamber is engineered to perception smoke produced by https://www.firesense.co.uk/type/addressable-fire-system/addressable-beam-detectors/