Leeb Hardness Tester NOVOTEST T-D3

Dynamic (Leeb) probe is used for measuring the hardness of non-ferrous metals, cast iron, coarse-grained materials, massive products etc.
Built-in camera allows user to take a picture of tested object and mark tested area with corresponding hardness value

Hardness Testers NOVOTEST T-D3 has sealed housing with rubber protective bumper, it is ideal for use in workshop and field conditions with high humidity, dust, etc. Hardness tester has frost-resistant display that allows user to use the device at any seasons and in any climatic zones of the Earth.


Leeb method for the hardness testing

Leeb probe is used for measuring the hardness of non-ferrous metals, cast iron, coarse-grained materials, massive products etc.

Hardness tester T-D3 also use a dynamic method of the hardness measuring – Leeb method, which is standardized according to ASTM A956

Leeb method for the hardness testing

This method allows user to measure very fast and easy: install the probe, press on the probe to recharge spring, press the button on the top of the probe to make test and after that save the results of the hardness value, which are showed on the display of the device. This method is used for measuring the hardness value of non-ferrous metals, cast iron, coarse-grained materials, massive products etc. (with weigh more than 5 kg or thicker than 10 mm) also this method perfectly complements the UCI method of hardness measuring. Hardness tester T-UD3 makes automatic calculation of the hardness of a wide range of materials – steel, stainless steel, cast iron, bronze, aluminum, so that we can say that combined hardness testers is the most universal, which is needn’t in recalibration, and fully ready for operation after “getting out of the box”.

Leeb Hardness Tester NOVOTEST T-D3 has different operating modes:

  • Graph – the mode of building of graph;

  • Histogram – the mode of building of histogram;

  • Statistics – the mode of statistic;

  • Smart – the mode of filtering of incorrect measurements;

  • Signal – the mode of displaying of signal.


We have the CE certificate of conformity for Portable Leeb Hardness Tester NOVOTEST T-D3.

  • Large full color graphic display with bright backlighting

  • Various measurement modes: statistic, graph, histogram, smart, signal

  • Calibration of any scale in any range

  • Convenience and ease of measurement

  • Optimized number of buttons

  • 88 combinations of materials and hardness scales (calibrations)

  • Photofixation of tested objects

  • Extended temperature range (frost, down to – 40°C)

  • Internal memory and communication with PC

  • New, intuitive menu with tips on the buttons

  • Optional wireless mini printer

  • Water resistant case

  • Rubber protected bumper


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                                                                  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

  • Leeb probe – HRC, HB, HV, HRB, MPa

  • Additional custom scales for calibration.


  • Dynamic (Leeb) pre-calibrated for steel, alloy steel, cast iron, stainless steel, aluminum, bronze, brass, copper.

  • Additional custom materials for calibration.

Data display                                                            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
  • Hardness tester

  • Leeb probe (D type)

  • 3pcs AA batteries

  • Charger

  • USB cable

  • Operating manual

  • Software for PC

  • Case

Available Options 
  • Different colors of rubber bumper protected case

  • Wireless printer

  • Batteries

  • Chargers

  • Hardness tests blocks

  • Portable grinding machine

  • Case for hardness tester

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

  • Impact bodies for Leeb probes