The OSI-RE-SS is really a reflector- kind linear optical beam smoke detector made to run as being a part of fire alarm devices. The beam operates primarily on the theory of light obscuration utilising an Infra-Purple beam. OSI-R-SS is actually a four-wire conventional reflector-sort linear optical beam smoke detector to https://extrabookmarking.com/story18624255/examine-this-report-on-conventional-beam-detectors