The OSI-RE-SS is a reflector- kind linear optical beam smoke detector made to function like a element of fire alarm systems. The beam operates totally on the basic principle of sunshine obscuration utilising an Infra-Crimson beam. OSI-R-SS is often a 4-wire conventional reflector-kind linear optical beam smoke detector to be https://7bookmarks.com/story18447367/not-known-factual-statements-about-conventional-beam-detectors