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Combined Hardness Tester T-UD3 combines two methods of measuring hardness by an indirect method: Ultrasonic Contact Impedance (ASTM A1038) and Leeb (ASTM A956). This makes the device the most versatile portable device in the world.

The ability to connect both probes combines the advantages of both methods and providing users the opportunity to use the one that is most suitable for solving a specific task. The Combined Hardness Tester T-UD3 allows user to measure the hardness of any metals, parts of any shape and thickness, measure the hardness of the surface hardened layers and evaluate the tensile strength.


  • Small indenter imprint (suits for mirror surfaces of shafts necks, blades, gear teeth, etc.)
  • Measuring surface hardened layers hardness
  • Wide range of hardness testing
  • Various measurement modes
  • 88 combinations of materials and hardness scales (calibrations)
  • Calibration of any scale in any range
  • Convenience and ease of measurement
  • Optimized number of buttons
  • Large full-color graphic display with bright backlight
  • Built-in photo camera for thorough reports
  • Automatic probe types recognition
  • Connected probe types indication
  • The calibrations are stored in UCI probe memory
  • Extended operating temperature range (frost, down to – 40°C)
  • Internal memory and communication with a PC
  • New intuitive menu with tips on the buttons
  • Optional wireless mini printer
  • Waterproofed housing
  • Rubber bumper protected housing
  • Internal clock
  • Hardness value measuring for any mass products with more than 1 mm  thickness (small parts, thin-walled structures, pipes, tanks, steel sheets, articles of complex shape, hardness testing of metal coatings, etc.)
  • Different operating modes:
    • Graph – the graph building mode
    • Histogram – the histogram building mode
    • Statistics – provides statistics for the current set of measurements
    • Smart – filters the incorrect measurements
    • Signal – displays the probe signal (only for the Leeb probe)

Combined Hardness Tester T-UD3

  • UCI probe types
    • 1kgf (10N) 2.2 lbf
    • 5kgf (50N) 11lbf
    • 10kgf (98N) 22lbf
    Leeb probe types
    • D
    • DC
    • DL
    • C
    • D+15
    • E
    • G
    Measuring range
    • HRC:20~70
    • HB:90~650
    • HV:230~940
    • Tensile strength, MPa: 370~1740
    • User calibrations for any range (for example: HV100-1600)
    Measuring accuracy
    • HRC: 2HRC
    • HB: 10HB
    • HV: 15HV
    • ASTM A1038
    • ASTM A956
    • ASTM E140
    • ISO 18265
    • DIN50159
    • GB/T 34205
    Indenter UCI probe – Diamond indenter
    Leeb probe – Hardened ball
    Measuring direction Any direction 360°
    Data storage Limited only by the memory card up to 32Gb
    Communication Upload data to PC and export as a spreadsheet (USB cable and software included )
    Hardness scales
    • UCI probe – HRC, HB, HV
    • Leeb probe – HRC, HRB, HB, HV, HL, MPa
    • Additional custom scales for calibration
    • Ultrasonic (UCI) probe – pre-calibrated for steel
    • Dynamic (Leeb) pre-calibrated for steel, alloy steel, cast iron, stainless steel, aluminum, bronze, brass, copper
    • Additional custom materials for calibration
    Data display
    • Load applied/contact (UCI)
    • Angle (Leeb)
    • Single test result
    • Max, Min, Average of tests
    • Number of tests,
    • Deviation
    • Var. coeff.
    • Histogram, Signal and Smart Modes (Filter of incorrect measurements).
    Indication Color LCD display (320×240)
    Operating environment
    • Temperature:-20°C~40°C
    • Humidity: 30%~80%R.H.
    Power supply DC 4,5V (3 pcs batteries AA)
    Instrument dimensions 160x75x30mm
    Net weight Approx. 0.3kg (without probe)
    Gross weight (package) 2kg
    Battery life Approx. 10 hours.
    Warranty 3 (1+2) years
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