General Technologies Corp., introduces the first new Short/Open Circuit Tracer/Detector. The FF300 is designed to quickly trace and easily detect Open or Short Circuits in electrical repairs work in the automotive industry. Technicians can now Locate short circuits, open connections, broken wires, current leaks and even trace electrical wires with this tool. All these tasks can be performed quickly and easily with much less effort and time required when compared to conventional methods. In most cases, the problem area can be located without having to untie harnesses, open conduits or remove panels. The FF300 includes: FF300R (receiver), FF300T (transmitter), hard carrying case and user’s manual This professional tool will operate on voltage ranges between 6 and 36 volt DC. For use in: Automobiles Trucks Trailers Boats RVs Any 6 to 36 Volt DC powered circuits.