Test Your Trailer Lights — Without the Tow Vehicle
The Check N Tow™ Trailer Light Tester lets you simulate real vehicle signals — including brake override and turn flash — for fast, solo, and accurate trailer diagnostics. Built tough, battery-powered, and compatible with Milwaukee M18 or DeWalt 20V batteries.
Smart. Rugged. Ready When You Are.
The Check N Tow™ isn’t just another tester — it’s your portable trailer command center. With a modular design that runs on the batteries you already own, this box brings true mobility and accuracy to your trailer checks. From job sites to campgrounds, just snap in a battery, plug in your trailer, and instantly test every function — no cords, no second guessing. Whether you're prepping for a haul or doing fleet maintenance, Check N Tow is the way to go!
More Than a Tester — It’s a Power Hub
Equipped with a built-in 12V cigarette-style outlet, the Check N Tow™ goes beyond trailer testing. This universal port gives you the flexibility to power tire inflators, LED work lights, inverters, phone chargers, and more — right from your test box. With the right adapter, it can even be used to jump-start a vehicle in a pinch. Whether you’re in the driveway, at the job site, or out on the trail, you’ll always have portable power wherever you go!
