Quick, easy way to test all electrical functions on the trailer without leaving your vehicle!
Beeping sound indicates if brake lights and turn signals are working
Simply click on the built in test switch to check each trailer function individually. A beep tells you the working circuit is good. If there's a problem, flip the test switch to check vehicle's connections and to find out where the problem is.
Rating breakdown1 review
1 of 1(100%)reviewers would recommend this product to a friend.
How often do you shop at JC Whitney.com? Once a Year
"Wow this is an awsome product. I got a ticket last year for brake lights out because I was alone and couldn't pre check. This cool item lets me know if everything is working without getting out of my truck.
It's about time someone came up with this product!"
Pros: I don't need anyone behind me or ever run back & to check lights
8out of10found this review helpful.
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