GAOTek Portable Grounding Resistance Tester

GAOTek portable grounding resistance tester is a handheld ground measuring instrument.




GAOTek portable grounding resistance tester is a handheld ground measuring instrument. The device is equipped with the necessary accessories for testing. The operation is simple and intuitive, and the operator only needs to read the instruction manual without participating in special training to operate. It is used to evaluate grounding resistance and quality based on it. The instrument is designed and manufactured based on your years of experience in producing and developing ground resistance and electrical installation and testing equipment. An excellent grounding system is an important guarantee for the safe and reliable operation of power telecommunication and electrical equipment.



  • All use advanced digital signal processing power microprocessor control
  • Three colours video display
  • Seven-level sensitivity setting, maximum enhancement 64 times
  • Touch keyboard
  • Sensitivity can be adjusted at any time
  • Automatic battery test function
  • Battery voltage indicator
  • SAE J1627 certification, can detect R134a, R12, R22
  • Can detect all halogen refrigerants
  • True mechanical pump sampling provides forward airflow for probe
  • with gradual change function
  • wireless, portable, only need 2 batteries
  • High-strength instrument box, reliable protection instrument
  • 77 in (35 cm) flexible stainless-steel probe


Technical Specifications

Resolution 0.01 Ω
Data Storage 200 groups
Jaw Size 1.96 in (50 mm)
Temperature 32 °F to 122 °F (0 ℃ to +50 ℃)
Ground Resistance Measuring Range 0.01 Ω to 200 Ω
Error (Double Clamp Method) ±3% ±2 digits
Error (Pile Method) ±2% ±2 digits
Dimensions 10.43 in x 5.12 in x 2.56 in (265 mm x 130 mm x 65 mm)
Weight 1.76 lb (800 g)


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