How Rock n’ Roll Mechanics Are Using Pro-Check 720
If you’ve ever worked in a trailer shop with old-school speakers thumping AC/DC or ZZ Top while sparks fly from a grinder, you get it — real mechanics don’t need fluff. They need tools that work every time, don’t break, and don’t waste their time.
That’s why more of these rock n’ roll-minded techs are reaching for the Pro-Check 720 when it’s time to run lighting diagnostics. As a reliable trailer light testing tool, the Pro-Check 720 has carved out a reputation for being dead simple, fast, and tough enough to toss in the back of a work truck without babying it.
Lighting Checks Without the Nonsense
The basics don’t change: the lights work, or they don’t. But the reasons why can be buried behind corroded wiring, bad grounds, broken circuits, or trailer harness issues. And when you’ve got trucks waiting and dispatch calling, there’s no time to fumble with second-rate tools.
The Pro-Check 720 gives you:
Full-function trailer light circuit testing
Built-in power supply — no tractor hookup needed
Quick-connect leads and rugged housing
Simple LED indicators — no guesswork
Compatibility with 7-way round pin connections
It’s everything you need to check trailer lights fast — whether you’re in the bay, on the yard, or out in the weather.
One Tool That Stays in the Toolbox
The Pro-Check 720 isn't the kind of tester you loan out and never see again — because once you use it, it's staying in your kit. It’s built like the rest of your gear: durable, predictable, and designed to keep you moving.
Techs across the country use it to:
Confirm light operation during DOT pre-checks
Diagnose trailer electrical issues without involving the tractor
Track down intermittent light faults
Validate repairs before putting a trailer back in service
It’s no surprise this tool is a staple for techs who keep their workspace as sharp as their wrench skills.
Designed for the Way You Work
If your shop sounds more like a rock station than a library, you probably care less about marketing fluff and more about whether your tools hold up under pressure. That’s where the Pro-Check 720 shines.
No app required
No computer necessary
No training manual needed
Just plug in, power up, and check
It works as hard as the person holding it.
Light It Up Right the First Time
Lighting violations are one of the top reasons trailers get flagged during inspections. That’s money lost, time wasted, and frustration for everyone down the line. Don’t rely on a visual walkaround or hope a faulty circuit doesn’t get noticed.
The Pro-Check 720 confirms lighting issues fast, so your repairs are done right — and your trailers roll out compliant.
To see what makes the Pro-Check 720 the preferred trailer light testing tool for hands-on techs, visit lite-check.com/shop/pro-check-720 or call 509-535-7512.