Beam detection has become common place within large open areas, such as atriums, warehouses, etc. Beam Detectors are cost effective when compared with using point detection and suitable for heights way above the operating limits of conventional smoke detection.
A device which senses smoke by projecting a light beam from a transceiver unit across the protected area to a reflector that returns the light signal back to the transceiver unit. Smoke entering the beam path will decrease the light signal causing an alarm.