The OSI-RE-SS is usually a reflector- sort linear optical beam smoke detector designed to function to be a element of hearth alarm systems. The beam operates primarily on the basic principle of light obscuration utilising an Infra-Crimson beam. On this web page, additionally, you will locate online video tutorials for https://cyberbookmarking.com/story18504048/not-known-factual-statements-about-conventional-beam-detectors