FaultFinder: Open and short circuit finder and tracer

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  The FF310 - FaultFinder™ is a specially designed tool for tracking and tracing short and open circuits, broken wires and current leaks on any electrical circuit with voltages from 6 to 42 Volt DC, and is used by technicians worldwide in an ample range of equipment such as automobiles, truck trailers, tractors, farming equipment, boats, forklifts, motorcycles, all-terrain and recreational vehicles, etc.

  The 42V ready™ FF310's wide working voltage range, automatic short/open detection, adjustable sensitivity levels and flexible antenna probe enables the technician to troubleshoot a complete array of common electrical problems without having to untie wire harnesses or remove body panels.


General Technologies Corp. FF310 FaultFinder

Easy & flexible to use

Technical Specifications

FF310T (Transmitter)

FF310R (Receiver)

Electrical Specifications

  • Input Voltage range: 6 to 42 Volt DC.
  • Input DC Current: Unlimited (internally limited)
  • Voltage output: 5 Volt DC maximum
  • Current Output: 100 mA DC RMS maximum


  • Short circuit tracing
  • Open circuit tracing
  • Wire identification
  • Wire/Circuit tracing
  • Ground connections checks

For use in

  • Automobiles
  • Trucks
  • Trailers
  • Boats
  • RVs
  • Any 6 to 42 Volt DC powered circuits.


  • FF310T (transmitter)
  • FF310R (receiver)
  • CT6100 Fuse block adapters (three sizes: Mini, ATO and Maxi)
  • CT8002 Computer safe cordless circuit tester
  • Hard padded case for carrying and storage
  • User's Manual