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Intelligent Beam Detectors
– OSI-RIE-xx

The OSI-RIE-xx is an intelligent reflector- type linear optical beam smoke detector that includes an 8″ reflector and an integral sensitivity test.


The OSI-RIE-xx is an intelligent reflector- type linear optical beam smoke detector designed to operate as a component of fire alarm systems. The beam operates primarily on the principle of light obscuration utilising an Infra-Red beam. Optical beam smoke detectors are particularly appropriate for protecting buildings with large open spaces such as warehouses, atriums etc.
The OSI-RIE-xx detector is a combined transmitter/receiver unit that can be directly connected to an intelligent detector circuit.


  • Combined transmitter and receiver unit, range 5-100 m (16-328 ft)
  • Addressable model for panels utilizing Advanced Protocol or CLIP mode SLC Communication
  • Complies to EN54-12
  • Wide 12° field of view
  • Intuitive beam alignment indicated by directional arrows
  • Highly resistant to building movement
  • Resistant to strong light sources; does not alarm when saturated by sun
  • Resistant to large solid intruding objects
  • Automatic sensitivity threshold level setting
  • 50° horizontal and 20° vertical beam alignment
  • Built-in heater
  • Electronic simulated smoke test from ground level
  • Standby, fault and alarm LED indicators visible from the front and bottom
  • Automatic drift compensation
  • Paintable cover
  • Removable plug-in terminal blocks
  • Optional heater kit available for the reflector