• Completely portable - Test the trailer plugs on both the tow vehicle and the trailer with one portable unit. Take it anywhere!
• No electronic knowledge required - simply follow the step-by-step wiring guide.
• Easy to find parts - Uses "off the shelf" components
• Automatically shows proper battery polarity ...
• Easily adjust brake controller output ...
• Quickly test signal, running, and backup lights.
• Allows you to work on the separate circuits and activate them with the flip of a switch.
• Test 4 pole, six pole, standard RV 7 pole and ASME 7 pole wiring codes.
  (Just wire up the appropriate adapter.)
• Complete plans and instructions.

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