The beam operates totally on the theory of sunshine obscuration employing infrared. The OSI-RI detector is really a put together transmitter/receiver that may be instantly connected to an clever detector circuit in LiteSpeed® or CLIP method. Electrical power and connectivity manifest inside the imager only as well as OSID-R only https://www.firesense.co.uk/type/addressable-fire-system/addressable-beam-detectors/