The Quad Photobeam Sensor PRO-100Q/200Q are quad photoelectric detectors designed to activate an alarm relay upon the detection of intruder through 4 pulsed infrared beams. For stable operation, the PRO-100Q/200Q are equipped with features such as 4 frequency selections, beam transmission strength selections, auto-gain lock, environmental module, programmed AGC functions, alarm memory indicator, 5-LEDs, audible signal for alignment and retransmitting function.
In simpler terms, the sensors have 4 separate frequencies to avoid cross-talk in stacked or long linear installations and 2 levels of beam transmission strength, which can be set to suit the protection distance. Also, the optimal sensitivity gain is automatically set at any coverage distance up to the maximum protection distance.