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New Product from TradeFox: The Jumper King

Invented by HVAC technician, Robert Kraft, the Jumper King is designed to bypass controls at the source and troubleshoot and locate low voltage shorts with the integrated resettable 3amp fuse.


  • Innovative circuit selector switches to activate leads/circuits of your choosing

  • Resettable popper fuse - will never short out

  • No batteries required - powered by the low voltage in the AC unit

  • Works on multiple stage units including heat pumps

  • Comes as a complete kit in a hard, EVA sectioned carrying case

  • Includes 20 interchangeable tips - 6 alligator clips, 6 magnetic tips, 6 self-piercing insulation tips, and 2 spade adaptors

Reach out to Pacific Product Sales for pricing, technical information, and product training!


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