About Check N Tow
Where Innovation Meets Practicality
Hello I'm Justin and I want to welcome you to Check N Tow — a brand born from real-world experience and a simple goal: make trailer-light testing fast, reliable, and frustration-free.
As someone who works hands-on with trailers and electrical systems, I saw the same problem time and time again — testing trailer lights required hooking up to a tow vehicle, wasting time and creating safety headaches. I knew there had to be a smarter way.
So, I built one.
How It Started
What began as a garage project quickly grew into a solution trusted by haulers, mechanics, and RV owners nationwide. Every Check N Tow unit is designed, 3D-printed, and hand-assembled right here in the U.S., using high-quality components and rigorous testing to ensure reliability with every use.
We did not build Check N Tow to be a throwaway tester. We built it to be serviceable, dependable, and supported after the sale — because our goal is for this to be the last trailer light tester you need to buy.
Because when it comes to towing, safety and dependability shouldn’t be optional.
Built for Real-World Use
The Check N Tow tester is compact, durable, and built for on-the-go performance. Each unit features:
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Compatibility with 18V–28V batteries
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Interchangeable battery adapters for major tool brands like Milwaukee and DeWalt
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A built-in 12V accessory power port for compatible low-draw accessories
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Three resettable circuit breakers that protect your gear and keep you working
Whether you’re in an RV park, managing a fleet, or prepping for the weekend tow, Check N Tow lets you test and troubleshoot trailer lights anywhere, anytime — without needing a tow vehicle.
Proudly American-Made
At Check N Tow, quality and craftsmanship come first. Every tester is assembled by hand with pride, right here in the United States — supporting local production and ensuring each unit meets our high standards before it leaves the shop.
We’re proud to serve DIYers, professionals, and businesses who expect more from their tools — and value innovation that makes everyday jobs simpler and safer.
Our Promise
We stand behind every product we build because we build them ourselves. If you ever have a question, issue, or suggestion, reach out directly — your feedback helps us make Check N Tow even better.