The OSI-RE-SS is actually a reflector- sort linear optical beam smoke detector created to function as a ingredient of fireplace alarm programs. The beam operates primarily on the theory of light obscuration utilising an Infra-Purple beam. OSI-R-SS can be a four-wire conventional reflector-variety linear optical beam smoke detector for use https://travialist.com/story8733503/how-conventional-beam-detectors-can-save-you-time-stress-and-money