GAOTek Digital Metal Hardness Tester

This Digital Metal Hardness Tester has measuring range of 200 HLD to 960 HLD, temperature range of 14 °F to 122 °F and 2 AA batteries.




  • Anti-slip impact device handle
  • Dustproof USB interface
  • 4 function keys for easy operation
  • 77-inch (45 mm) color display screen


Technical Specifications

Hardness Scale  HL, HB, HRB, HRC, HV, HS, σb
Measuring Range 200 HLD to 960 HLD,19.8 HRC to 68.5 HRC,

30 HB to 651 HB,

80HV to 976 HV,

26.4HS to 99.5 HS,

13.5 HRB to 100 HRB,

375 σb to 2639 σb

Impact Devices  D type impact device standard, optional C/G/DC/DL/D+15
Accuracy  ±6 HLD (HLD = 800), Repeatability <6 HLD (HLD = 800)
 Measuring Direction  360 degree by manual setting
Material  Steel, Cast Steel, Stainless Steel, GC IRON, NC IRON, Copper-tin alloy, Cast Aluminum alloy, Macht metal, Brass, Allpoy Tools Steel, Forged Steel
 Resolution  1HL, 1HV, 1HB, 0.1 HRB, 0.1 HRC, 0.1 HS
Display  High Contrast Segment Liquid Crystal Display (LED Backlight)
Memory  100 groups (each group include 1 to 7 testing result and 1 MEAN value)
Communication  USB port (Standard) and Bluetooth (Optional)
Power  2 AA batteries
Operating Temperature  14 °F to 122 °F (-10 ℃ to 50 ℃)
Size  6.02 in x 2.99 in x 1.45 in (153 mm x 76 mm x 37 mm)
Weight  0.61 lb (280 g) include batteries


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