The OSI-RE-SS is often a reflector- type linear optical beam smoke detector made to function like a part of hearth alarm programs. The beam operates totally on the basic principle of sunshine obscuration utilising an Infra-Crimson beam. OSI-R-SS can be a 4-wire conventional reflector-form linear optical beam smoke detector for https://tornadosocial.com/story4044701/a-review-of-conventional-beam-detectors