Detectors 146
Detectors 146 : Particle Detectors: (4.14) Optical Beam Smoke Detector: An optical beam smoke detector is a device that uses a projected beam of light to detect smoke across large areas, typically as an indicator of fire. They are used to detect fires in buildings where standard point smoke detectors would either be uneconomical or restricted for use by the height of the building. Optical beam smoke detectors are often installed in warehouses as a cost effective means of protecting large open spaces
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