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Kyoritsu Earth Testers

A complete range of digital and analogue earth resistance testers.

Core features

Many types of measurement from simplified 1 wire, through 2, 3 , 4 wire and clamp type measurements.

Kyoritsu 4102A / 4102A-H 

  • 4102A: Soft Case Model or 4102A-H: Hard Case Model 
  • Dust and drip proof. (designed to IEC 529 IP54) 
  • Earth resistance value can be read directly from the scale. 
  • Capable of measuring earth voltage. 
  • Small and lightweight. Shock resistant new case material.  

Kyoritsu 4105A / 4105A-H 

  • 4105A: Soft Case Model or 4105A-H: Hard Case Model 
  • In addition to the facility for precision measurement, test leads for simplified two wire measuring system also supplied as standard accessories. 
  • Designed to meet IEC 61010-1 safety standard. 
  • Measurement from mA up to AC 1000A. 
  • Capable of measuring earth voltage. 
  • Automatic warning when resistance of aux. earth spikes is in excess of tolerance.  

Kyoritsu 4106 

  • High test current up to 80mA yielding resolution of 0.001Ω on 2Ω range. 
  • Advanced Filtering method (based on FFT Fast Fourier Transform) reduces noise interference for obtaining stable measurements. 
  • Automatic and Manual selection of the Test Current Frequency in four bands (94/105/111/128Hz). In Automatic mode, KEW 4106 will select the most suitable Frequency. 
  • Warning for excessive noise and high Auxiliary Earth Spikes resistance. 
  • Three AC current ranges 20mA/200mA/200A. 
  • Large Graphic Display with backlight for readings in poorly illuminated areas. 
  • Robust design with IP54 protection. 
  • Up to 800 measurement results can be saved in the memory and recalled on the display.  

Kyoritsu 4200 

  • The earth resistance from 0.05 to 1200Ω can be measured without the auxiliary earth spikes. (The Multiple Earthing System) 
  • Accurate True RMS readings of AC current including distorted waveform from 1mA to 30.0A 
  • Noise Check Function  
  • Memory Function - save and display up to 100 measurement data. 
  • Data hold function / Buzzer function / Back light function 
  • Compliant with Safety Standards of IEC 61010-1 : CAT IV 300V Pollution degree 2 
Note: A single earthing can not be measured. (Only for Multiple Earthing System)

Kyoritsu Repair and Calibration Service

Rutherford Electrical Engineering Services is an authorised Kyoritsu calibration and repairer.

For more information go to the website: