IPA Tools 7865L 7-Way Round Pin Trailer Circuit Tester
Product Number: 21383
Manufacturer: IPA Tools
$34.95
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Product Details:
The 7-Way Round Pin Tractor Trailer Circuit Tester does "one man testing" for male and female 7-way round pin tractor trailer plugs -- and much more!* Troubleshoots tractor trailer circuits.
* One person can test all the lighting alone.
* Allows you to bypass troubled circuits so you can drive away.
* Eliminates guesswork.
* Comes with an extra jumper connector.