This "Self-tuning" loop detector is designed to be used with DoorKing vehicular gate operators ONLY and control an individual loop (including 2 series wired reversing loops configuration) and an auxiliary relay with dry relay contacts that activates whenever the loopdetector senses a vehicle in the Loop's detection field. The loop detector plugs into loop detector ports on the gate operator control board. This "Self-tuning" detector will constantly monitor the loop's frequency status and "Self-tune" for any minor deviations withthe frequencies to keep the loop operating normally and decrease "false calls". The detector also employs several automatic andadvanced features that will assist technicians in the field with trouble shooting loop problems.