INFRARED PHOTOELECTRIC BEAM
Twin beam photoelectric detectors, designed for short-range
outdoor or long-range indoor applications.
Using twin beams of pulsed infrared energy, reliable operation is
possible in the worst conditions - up to 99% of the emitted
radiation can be blocked by rain, fog or falling snow and the
beams will still operate.
By utilising an automatic gain control circuit, gradual changes in
signal strength caused by weather conditions are continually
monitored and the trigger level adjusted accordingly to
compensate. In addition, the unique anti-frost design allows for
trouble-free operation when the cover is completely frosted over.