The beam operates primarily on the theory of light obscuration employing infrared. The OSI-RI detector is often a put together transmitter/receiver which might be directly connected to an smart detector circuit in LiteSpeed® or CLIP method. If You aren't but registered, remember to enter your e-mail deal with beneath and https://www.firesense.co.uk/type/addressable-fire-system/addressable-beam-detectors/