GAOTek Portable Digital Hardness Tester

GAOTek portable digital hardness tester is the tester with the printer, which is convenient for users to print the test results.




GAOTek portable digital hardness tester is the tester with the printer, which is convenient for users to print the test results. It is the most cost-effective portable hardness tester. The instrument is designed with a streamlined ergonomic structure and is equipped with a standard stand. It uses a large-screen OLED dot matrix display, which is informative and intuitive. No dead ends, easy to operate and read values. 



  • OLED display, highlight, and no viewing angle limitations 
  • Converts to all common hardness scales: HV, HB, HRC, HRB, HRA, HS 
  • English display and menu for user-friendly operation 
  • USB 2.0 interface for versatile communication 
  • 7 interchangeable impact devices; automatic recognition 
  • Stores up to 600 data sets; customizable alarm for limit exceedance 
  • Backlight for low-light conditions 
  • Software calibration and auto power-off 
  • Powered by Ni-MH rechargeable battery 
  • 150 hours of continuous use 


Technical Requirements

Measuring Range  170 HLD to 960 HLD, 17.9 HRC to 69.5 HRC, 19 HB to 683 HB, 80 HV to 1042 HV, 30.6 HS to 102.6 HS, 59.1 HRA to 88 HRA, 13.5 HRB to 101.7 HRB 
Impact Directions  Up, down, horizontal, slanting up, slanting down 
Measuring materials  steel and cast steel, alloy tool steel, stainless steel, gray cast iron, ductile iron, cast aluminum alloy, copper-zinc alloy (brass), copper-tin alloy (bronze), pure copper, forged steel 
Standards  ASTM A956, DIN 50156 to 1, GB/T 17394 to 1998 
Hardness scales  HL, HB, HRB, HRC, HRA, HV, HS 
Tensile strength  374 N/m2 to 2652 N/m2 
Display  OLED display 
Memory  600 groups max. (relative to impact times 32 to 1) 
Work voltage  9 V / 500 mA 
Interface port  USB 2.0 
Dimensions  8.3 in x 3.4 in x 1.8 in (210 mm x 85 mm x 45 mm) 
Weight  1.32 lb (600 g) 
Continuous working period  about 200 hrs 


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