Optical beam smoke detectors are specially appropriate for safeguarding buildings with significant open spaces which include warehouses, atriums and so forth. OSI-R-SS is usually a 4-wire conventional reflector-type linear optical beam smoke detector to be used in fire alarm units. The beam operates primarily on the basic principle of light https://natural-bookmark.com/story18534031/top-latest-five-conventional-beam-detectors-urban-news