Qualitek mR Multi-Range Industrial Leak Tester

The standard for fast and dependable leak testing in light to medium-duty industrial applications.

Qualitek mR is the unparalleled standard for lightning-fast and dependable leak testing in light to medium-duty industrial applications. With a perfect fusion of cutting-edge multi-range (mR) leak and flow testing technology and the unmatched expertise of Uson, Qualitek mR sets the benchmark for excellence.

One of the standout features of Qualitek mR is its remarkable versatility, allowing you to utilize the same testing platform for a multitude of techniques. Whether it's pressure decay, differential pressure decay, vacuum decay, mass flow, forced decay, or sealed component testing, this exceptional device has got you covered. By consolidating various testing options into one product, Qualitek mR not only saves valuable time but also simplifies personnel training efforts.

As communication is key, Qualitek mR offers comprehensive communication options that seamlessly integrate with peripherals or automation equipment. With USB, Ethernet, RS 232, digital IO for PLC interface, Modbus, Profibus, DeviceNet, and email alerts, staying connected and in control has never been easier.

Sensor Types

  • Differential pressure
  • Load cell
  • Mass flow
  • Pressure
  • Temperature


  • Max Channels-Design (1)
  • Synchronous
Request A Quote

For many years, Qualitek has been the proven standard for fast, reliable leak testing in industrial markets. This versatile and affordable product offers high-quality and accurate results for light- to medium-duty industrial leak testing applications.

Designed with an intuitive operating system, Qualitek mR ensures effortless learning and integration. Its computer-style mounting can be conveniently repositioned, providing optimal viewing angles from any direction.

Today’s mR line combines the best features of predecessors into one efficient and easy-to-use tester. Backed by Uson’s world-renowned reputation, Qualitek mR sets a new benchmark of accuracy and dependability in leak testing equipment for multi-range leak and flow testing equipment. Designed to be used on the benchtop or mounted into automated systems, the Qualitek mR is impressively simple to use. The convenient and easy-to-read display lends efficiency and helps prevent errors.

Qualitek mR is a highly configurable system that accepts a full range of tests and transducers. It contains the most current leak testing technology, including a powerful toolbox complete with a full menu of options including:

• Pressure profile
• Charting
• Data analysis
• Programs storage
• Scroll-and-click control wheel

Whether you're in the automotive, packaging, or industrial manufacturing industries, Qualitek mR is the ultimate choice for leak testing. From faucets, pumps, valves, shower heads, ink cartridges to castings, this versatile device caters to a wide range of applications, delivering unmatched precision and reliability.

Flow Range: Up to 100 Liters per minute
Pressure Range: Up to 225 psig/15 bar differential
Up to 500 psig/35 bar gauge
Communications: RS-232 ports / tester 1
Host USB 2.0 ports 2
Device USB ports 1
Modbus serial
Ethernet IP

Inputs/Outputs: Max Decision Sensors / tester 3
Max Sensors / channel 2
A/D resolution (bits) 24
Max Analog Outputs / tester 1
Max Analog Outputs / channel 1
Analog Output bits PWM (~12)
Maximum 24V DC discrete digital inputs / tester 11
Valve Control signals / tester 16 (internal)
Maximum discrete digital outputs/channel 5
Discrete digital outputs / channel 5
Digital I/O Expansion option 8 in/16 out (valve drive capable)
Two-handed start support (software based)
Digital I/O Voltage Level 24vdc

Local Area Network: RJ 45 Ethernet ports 1
Logging to a networked disk
Emailed alerts
Physical Characteristics: Size (H*W*D) Inches 7 x 10.75 x 12
Weight lbs 24
Color Display size 8.5"
Color Display pixels 640 x 480
Front-panel membrane buttons 5
Integrated pneumatics
Test Ports 1
Calibration Ports 1
Test port style 1/8 NPT Female
Pendant Style Remote Control

Data: Accept/ Reject / Total Counts
Min/Max Test Result
Average Pass/Reject Result
Standard Deviation of all test results
Range of test results
Pressure versus time plot
  User Interface: Real time clock
Program select via Digital Inputs
Start / Abort via Digital inputs
Bar code input & control
Auto Comp & Auto Cal
Temp Comp (Pressure change)
Regulator – closed loop control
Configurable Pressure Units: psig, mbar, inH2O, mmH2O, inHg, mmHg, Kpa or Kg/cm2
Parts Grading
Auto Run Mode
Conditional Program Jumps
Accept/ Reject Step Markers – Continuous with timeout
Accept/ Reject Step Markers - Pulsed
Software: Operating System Software
Unix Based
Run/Program security key
Addressable Programs 99
Internal Test Result storage (test cycles) 1,000
Sequence Program link. Stop control, Vent control, Delay time option, Step control
Sensor Calibration Software zero & span with option of multi-point linearization per analog input.
Qualitek mR Multi-Range Industrial Leak Tester
Download Brochure
Operator Manual
Operator Manual (Spanish)
Troubleshooting Guide