The Pioneer of Modern Leak Testing

Raptor Leak Tester

Raptor Leak Tester

The Raptor may seem like a simple thing. It even sounds simple: single-channel leak tester. On this very website, you can find extremely versatile, highly configurable leak testers and leak testing systems, the industry’s finest technology, that have helped reduce recalls and increase efficiencies for a wide array of product manufacturers all over the world.

So what’s so special about a small, single-channel, pressure decay device? Well, everything, actually.

Easy Interface with Smart Visual Cues

Raptor utilizes an ARM processor and a Unix-based operating system with a color, touch-screen interface. The screen provides the user visual cues, showing program execution information for:

  • Step count down timers
  • Pressure plot
  • Step results
  • Coupling outputs
  • Current test pressure

Single-Channel Superiority

First of all, it’s a Uson leak tester, which means it has 50 years of experience, innovation and leadership engineered into the most fundamental of machines. It has a small footprint for convenience, but it makes a massive impression.

The Raptor includes an update to our core test pneumatics. This version of the rugged duty, long-life Stallion Manifold block helps us reduce the overall footprint of Raptor while maintaining a 50,000,000-cycle lifespan.

The Uson App


Raptor pairs with both Google Android(TM) and Apple iOS(TM) smart phones and tablets. With its smart, revolutionary interface and Bluetooth technology, the Raptor sets a new standard by which all future testers will be measured, making it the latest in a long line of Uson firsts.

We raised the bar.


The Uson’s firsts continue thanks to the Uson App and Bluetooth technology. Not only does this allow you to quickly and easily set up and tune your Raptor leak tester, you can monitor its activity without having to stand over it or the person at that station.


Raptor Specifications

Raptor Notes
Industries Best Suited for Use
  • Industrial
  • Packaging
  • Medical
  • Automotive
Max Channels-Design 1

Channel Operating Modes

Raptor Notes


Raptor Notes
Max Decision Sensors / Tester 1
Max Sensors / Channel 1
A/D resolution (bits) 24
Maximum 24V DC discrete digital inputs / tester 8
Discrete digital inputs / channel 8
Valve Control signals / tester 2 internal, 5 external, for valve control
Maximum discrete digital outputs / tester 5
Discrete digital outputs / channel 5
Digital I/O Voltage Level 24 vdc

Communication Interfaces

Raptor Notes
RS-232 / RS-485 ports / channel
Host USB 2.0 ports 1

Local Area Network Support

Raptor Notes
RJ 45 Ethernet ports 1
Logging to a networked disk

Physical Characteristics

Raptor Notes
Size (H*W*D) Inches 5.25" H X 7.75" W X 13" D
Weight lbs 10.5
Color Display size 4.3"
Color Display pixels 480 x 272
Touch screen display
Front panel start/abort buttons
Integrated pneumatics
Test Ports 1
Calibration Ports Combined with Test Ports
Test port style 1/8 NPT Female
Pendant Style Remote Control

Sensor Types

Raptor Notes

Test Techniques / Step Types

Raptor Notes
Pressure Decay with optional comp & optional cal from vacuum to 150 psi max = 150PSI
Vacuum decay

Operational Features

Raptor Notes
Real time clock
Program select via Digital Inputs
Start / Abort via Digital inputs
Configurable Pressure Units: psig, mbar, inH2O, mmH2O, inHg, mmHg, Kpa or Kg/cm2

Data: Statistics and Graphical Displays

Raptor Notes
Pressure versus time plot


Raptor Notes
Operating System Software Embedded Unix Based
Password protection
Addressable Programs 10
Internal Test Result storage (test cycles) 5000
Sensor Calibration Software zero & span.

IMPORTANT: Requires Android 4.3 or newer, or Apple iOS 5.0 or newer. Please check your smart device and upgrade the OS as needed.

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Uson L.P. - Corporate

8640 N. Eldridge Parkway
Houston, TX 77041 USA

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


Uson UK – Europe

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

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


Uson – China

Room 601, 567 Lan Gao Road
Shanghai, 200333, China

Main: 021-583 65859, 021-583 59187
Fax: 021-583 59185, 021-337 73559