The OSI-RE-SS is a reflector- type linear optical beam smoke detector designed to run for a part of fireplace alarm devices. The beam operates totally on the theory of light obscuration utilising an Infra-Red beam. Near/span> You can not access this page as this merchandise is not really obtainable within https://atozbookmark.com/story18441611/a-secret-weapon-for-conventional-beam-detectors