MARLEX Engineering Inc.

Thinking with you through every stage of the design

Trailer Tester for testing and diagnosing electrical faults in commercial truck trailer wiring and lighting systems - detailing battery compartmentTrailer Tester wireless hand-held remote controlTrailer Tester removable base station and wireless hand-held remote controllerClose-up view of Trailer Tester control panel and display

Trailer Tester Features

  • Wireless Hand-held Remote – circuits can be activated from anywhere around the trailer - saving time and money
  • Heavy-duty Design:
    • Internal protection circuitry and resettable circuit breakers prevent damage to the tester if it is connected to a short-circuit.
    • No mechanical switches on the main unit that could wear out or break - advanced circuitry senses the operator's fingers through a solid panel of high-impact plastic.
    • A rugged piece of equipment made for use in a dirty environment and built to last.
  • Easy to Move – the entire tester and battery are mounted on a wheeled cart so it can be quickly and easily moved around the work area.
  • User-friendly – a powerful tool yet simple to use.
  • Multiple Power Sources – accepts power from a 120VAC source or a 12V automotive battery, or both.
  • Built-in Charger – internal power supply automatically charges the battery.
  • Standard Interface – uses an industry standard SAE J560 cable and a 12V automotive battery.
  • Modular – the main control unit can be used as a stand-alone tester by simply lifting it off the cart.
  • Auto Power-off – preserves battery life if tester is left on.

The Trailer Tester is available through ProQuip International under the name RT300 Remote Tester.

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