The OSI-RE-SS is really a reflector- kind linear optical beam smoke detector made to operate as a ingredient of fireplace alarm devices. The beam operates totally on the theory of light obscuration utilising an Infra-Pink beam. OSI-R-SS is often a 4-wire conventional reflector-form linear optical beam smoke detector for use https://bookmarkingbay.com/story18545542/conventional-beam-detectors-an-overview