The beam operates primarily on the principle of light obscuration utilizing infrared. The OSI-RI detector is actually a blended transmitter/receiver which can be specifically linked to an smart detector circuit in LiteSpeed® or CLIP manner. The FSP-951 photoelectric detector’s unique optical sensing chamber is engineered to feeling smoke made by https://www.firesense.co.uk/type/addressable-fire-system/addressable-beam-detectors/