Meet Justin
Hello, I’m Justin, and I want to welcome you to Check N Tow — a brand built from real-world trailer experience and a simple goal: make trailer-light testing faster, more reliable, and less frustrating.
I created Check N Tow because I kept running into the same problems when testing trailers. Most basic testers only let you check one function at a time. They did not truly simulate how a real tow vehicle operates, they often struggled with LED trailer lights, and many were not built to handle the daily demands of a shop, fleet, campground, or busy trailer owner.
Some testers would cause nuisance fuse trips because of limited capacity. Others worked for a while, but when something failed, support was limited and serviceability was almost nonexistent. Too many products felt disposable.
I knew there had to be a better way.
so I built one.
CHECK N TOW'S JOURNEY
1
HOW IT STARTED
Check N Tow began as a practical solution to a real problem: trailer-light testing should not require tying up a truck, walking back and forth endlessly, or relying on a tester that cannot keep up with real-world use.
Instead of building another basic switch box, I wanted a tester that could run multiple light functions at the same time, better simulate actual vehicle operation, and 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 give
2
BUILD FOR REAL WORLD USE
Check N Tow is built for people who depend on their trailers and need a tester they can count on.
1. The ability to test multiple trailer light functions at the same time
2. Interchangeable battery adapters for major tool brands like Milwaukee, DeWalt and Snap-On.
3. Real automotive relays and a flasher relay for vehicle-style signal testing
4. A built-in 12V accessory power port for compatible low-draw accessories
5. Three resettable circuit breakers that protect your gear and keep you working
3
PROUDLY AMERICAN MADE
At Check N Tow, quality and craftsmanship matter. Every tester is assembled by hand in the United States and checked before it leaves the shop.
We use real automotive-style components because trailer testing should feel closer to real tow vehicle operation, not like a weak or limited test box. From the relays and flasher relay to the resettable circuit protection, Check N Tow is built with long-term use in mind.
We stand behind every tester we build because we build them ourselves. If you have a question, need help choosing the right battery adapter, or ever need support after the sale, you are dealing directly with a small business that cares about the people using its product.
OUR PROMISE
We stand behind every product we build because we build them ourselves. If you ever have a question, Issue, or suggestions, reach out directly, your feedback helps us make Check N Tow even better
Designed with purpose. Built with care
