Combined Hardness Tester NOVOTEST T-UD3

The device operates both UCI (Ultrasonic Contact Impedance) and the Leeb (dynamic) probes.

Getting benefit from two types of measurements is the ultimate advantage that a portable device can provide.


UCI method for the hardness testing

The UCI hardness measuring method complies to ASTM A1038.
The ultrasonic contact impedance (UCI) probe is purposed to be used for hardness measuring in the case of the testing area minimal thickness (from 1 mm), objects of complex surface shape, and for measuring surface hardened layers hardness.
This method is very fast and easy: place the probe on the tested object surface, press the probe with the required effort to the surface and save the hardness value, shown on the display of the device. Small size diamond indenter allows measuring hardness value of all items, which are thicker than 1 mm. The UCI method of hardness testing is the least destructive because the hardness tester NOVOTEST T-UD3 with UCI probe leaves much smaller prints (imprints) than the majority of bench hardness tester would. That’s why a portable hardness tester with UCI probe is the best choice.

Leeb method for the hardness testing

The Leeb hardness measuring method complies to ASTM A956.
The Leeb probe (D type) is used for hardness measuring of massive objects (more than 5 kg, and more than 10 mm) and made of steels non-ferrous metals,  cast irons, coarse-grained materials, e.t.c. Also, Leeb method perfectly complements with UCI hardness measuring method when UCI method is not applied.
This method is very fast and easy: place the probe on tested object vertically to the object surface, push the probe to charge the spring, press the button on the top of the probe to make measurement and save the hardness value, shown on the display. For the Leeb measuring method, NOVOTEST-UD3 automatically calculates hardness for a wide range of materials, like steel, stainless steel, cast iron, bronze, aluminum.
The combined hardness tester is the most universal, needs no recalibration, and is fully operational “out of the box”.

When the measurements are made, the operator can take a photo of the sample with the built-in photo camera and place the results exactly where the measurements occurred (up to 5 results per picture).
The saved measurements results and pictures may be transferred to a PC using the “ARM” software, which supplied along with the hardness tester.
The hardness tester allows measuring the hardness at extremely low temperatures.
In reality, tests have been carried out at – 25°C. There was no problem to operate the device at all. Measurement accuracy did not exceed the accuracy standards. The Keyboard and display gave no troubles at all, and we found no difference using the device in the warm and cold environment!

Portable Combined Hardness Tester NOVOTEST T-UD3 is CE certified.

  • 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)


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                               HV:230~940; HRC:20~70; HB:90~650. Tensile strength, MPa 370~1740

Measuring accuracy                           HV:±3%HV; HRC:±1.5%HRC; HB:±3%HB

Standards                                            ASTM A1038, ASTM A956, ASTM E140

Indenter                                             Diamond indenter (UCI), Hardened ball (Leeb)

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 scale

  • UCI probe – HRC, HB, HV

  • Leeb probe – HRC, HB, HV, HRB, 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 Mode (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)

Battery life                                          Approx. 10 hours.

Standard Package

Available Options 

  • Hardness tester

  • UCI probe (10N, 50N or 98N for choice)

  • Leeb probe (D type)

  • 3pcs AA batteries

  • Charger

  • USB cable

  • Operating manual

  • Software for PC

  • Case

  • Additional UCI and Leeb probes

  • Different colors of rubber bumper protected case

  • Wireless printer

  • Batteries

  • Chargers

  • Hardness tests blocks

  • Set of support rings for D, DC type Leeb probes

  • Impact bodies for Leeb probes

  • Portable grinding machine

  • Case for hardness tester

  • Can be equipped with two types of UCI probes: