GAOTek Portable Metal Hardness Tester

This Portable Metal Hardness Tester has range of 10H to 90H, 3.7V battery, temperature of up to 104°F, USB connector with wireless data transmission.




  • It meets the international standards of ISO3906-1980 (E), ISO3905, ISO2814, and the national standards of GB/T13452.3-92, GB9270-88, GB5211.17-88
  • This instrument is composed of main unit, standard board (a black one and a white one), testing board (a black one and a white one)
  • When the reflected light of the sample acts on the surface of the photocell, an electric signal is input into the DC amplifier and amplified for reading on the display
  • Use USB data output to connect with PC
  • Provide Wireless transmission data output choice


Technical Specifications

Accuracy ≤± 1
Resolution 0.1
Range 10 H to 90 H
Humidity <85%
Power Supply 3.7 V Lithium Battery
Operating Temperature 32 °F to 104 °F (0 ℃ to 40 ℃)
Size 5.55 in x 1.78 in x 3.11 in (141 mm x 45 mm x 79 mm)
Weight 0.68 lb(310 g) (Including batteries)


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