The OSI-RE-SS is actually a reflector- sort linear optical beam smoke detector made to operate for a part of fire alarm units. The beam operates totally on the principle of sunshine obscuration utilising an Infra-Purple beam. OSI-R-SS is often a 4-wire conventional reflector-style linear optical beam smoke detector for use https://bookmarkerz.com/story18479893/the-fact-about-conventional-beam-detectors-that-no-one-is-suggesting