The Pioneer of Modern Leak Testing

These days, the world is spinning at higher RPMs.

Especially the automotive world. What’s more, no matter how smooth or rocky a road the industry might be traveling, those in the manufacturing trenches, the true heroes, are expected to up their game.


To raise performance, regardless of time or circumstances.

And somehow they get it done. As production cycles shrink and assembly lines shift into high gear, they not only make the numbers, they make sure quality and integrity don’t suffer. It’s an honor to serve them.

Fast, accurate, reliable and repeatable leak testing is more critical than ever.

Uson responds with engineered leak and functional test solutions that achieve maximum flexibility while maintaining the highest quality. We provide such solutions for applications ranging from complete engines to fuel injectors, transmissions, brake components, cooling systems, electrical fittings and much more. Furthermore, our methodology eliminates false rejects while keeping defective products from getting to market. After 50 years in an industry we practically invented, we are still the race leader, the go-to provider of leak and flow testing for the world’s major automobile manufacturers, transportation companies and their suppliers. So when they’re required to go faster, we’re right beside them making sure it’s safe to step on the gas.  

Product Lines Engineered for Automotive Applications

Optima vT


The standard bearer.

Versatile multi-sensor leak and flow testers with advanced features and increased flexibility.

Learn more about Optima vT >



UIS (UIS) are precision engineered leak test systems for manual, semi-automatic and fully automated leak testing.

Learn more about UIS/Prex >




The measure of quality

The Qualitek line of airflow testing equipment includes rugged and functional testers that are easy to use, highly repeatable and very accurate.

Learn more about Qualitek >




The ultimate in testing performance, speed, flexibility and durability.

The fastest and most powerful testers on the market, the Vector family of testers raises performance to new levels of efficiency and productivity.

Learn more about Vector >


Automotive Device Leak Testing Applications

  • Power Steering
  • Lamps and Lenses
  • Axles
  • Cylinder Heads
  • Cooling Systems
  • Brakes
  • Emission Controls
  • Cylinder Blocks
  • Engine Blocks
  • Engine Assemblies
  • Miscellaneous
  • Total Engines
  • Exhaust Systems
  • Engine Subassemblies
  • Fuel Systems
  • Transmissions
  • Electrical
  • Intake Manifolds
Download Full Application List

Contact Us

Uson L.P.

8640 N. Eldridge Parkway
Houston, TX 77041 USA

Phone: +1-281-671-2000
Fax: +1-281-671-2001


Uson UK – Europe

Western Way Bury St. Edmunds
Suffolk, IP33 3SP United Kingdom

Phone: +44-1284-760606
Fax: +44-1284-763049


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