The OSI-RE-SS can be a reflector- sort linear optical beam smoke detector made to work for a element of fire alarm techniques. The beam operates primarily on the basic principle of sunshine obscuration utilising an Infra-Red beam. OSI-R-SS is actually a four-wire conventional reflector-type linear optical beam smoke detector for https://thebookmarkid.com/story18641101/considerations-to-know-about-conventional-beam-detectors