
A beam smoke detector is a device that consists of transmitter/receiver unit and a reflector. It transmits beam of light in order to detect smoke across large areas, wherein smoke is naturally a sign of fire. Beam smoke detector works on the principle of light obscuration, where there is a transmitter that emits beam and a beam receiver. If the presence of the smoke disrupts a certain percentage of beam light of the transmitted light, it will send signal to the panel that there is a fire. Beam smoke detectors area commonly used in area wherein standard point smoke detectors are not economical or efficient to use.