IPA 7893 7-Way Flat Pin Tractor-Trailer Circuit TesterThe 7 way Flat /Spade Pin Trailer Circuit Tester quickly and easily tests trailer circuits on most light to medium duty trucks and campers. • Just plug the plug tester into the trailer plug socket and activate the lights, brakes, turn signal etc.
• Watch the LED light indicating that each circuit is complete and current is getting to the plug
• A tremendous time saver
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