AEMC Instruments 2135.55 - 6422 3-Point Digital Ground Resistance Tester - 50k Ohm


The AEMC Instruments Digital Ground Resistance Tester Model 6422 performs 2-pole and 3-pole ground resistance measurements. This direct reading tester is auto-ranging, so it automatically seeks out the optimum measurement range. The Model 6422 is easy to use - simply connect the leads, press to measure, and read. The large LCD also indicates low battery status, overrange, and lead reversals.

The Model 6422 is powered by 6 x AA rechargeable NIMH batteries. The Ground Resistance Tester Model 6422 is also available in a complete Kit (150ft).


  • Simple, one button operation - eliminates errors in testing
  • Test button turns green when measurement is stable
  • 2P resistance/ 3P ground resistance measurement up to 50kΩ for highly resistive terrain
  • Large back lit digital display – easier to read in all lighting conditions
  • Automatic hold function - retains last measurement after the reading stabilizes ensuring the measurement is valid
  • Automatic test frequency selection between 128 and 256 Hz, providing stable results in adverse environments
  • Powers up in 2 pole mode – automatically checks the injector lead connection when connected to the H auxiliary rod
  • Convenient storage of the three measurements along with the average and % deviation - easily determines proper test results
  • Built in test lead compensation capability – improves the accuracy of low resistance measurements
  • CAT IV 600V rated for a high level of operator safety
  • Color coded leads and terminals provide fast, error-free connection hook-up
  • Detects and prohibits hazardous voltage measurement
  • Direct access to all functions, even when wearing work gloves
  • Rugged water resistance case, for all terrain use
  • Built-in display stand to prop up instrument for seeing the display better when placed on the ground
More Information
Display Digital
Manufacturer AEMC Instruments
Measurement 50k Ohms
Rating CAT IV-600V
Type Ground Resistance Testers
Additional Skus 6422, 2135.55, 213555
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