Fluke 1625 Used

Fluke 1625 GEO Earth Ground Tester

GEO Earth Ground Tester

The Fluke 1625 is one of our refurbished GEO Earth Ground Testers.

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Fluke 1625 features:

  • 3- and 4-pole earth ground measurement
  • 4-Pole soil resistivity testing
  • 2-pole resistance measurement AC
  • 2- and 4-pole resistance measurement DC
  • Selective testing, no disconnection of ground conductor (1 clamp)
  • Stakeless testing, quick ground loop testing (2 clamps)
  • Earth impedance measurement at 55 Hz
  • Automatic frequency control (AFC) (94, 105, 111, 128 Hz)
  • Measuring voltage switchable 20/48V
  • Programmable limits, settings
  • Continuity with buzzer


  • Fluke 1625 tester
  • 2 test leads
  • Batteries
  • Users manual

The Fluke 1625 is a distinctive earth ground tester that can perform all four types of earth ground measurement.

Specifically, the Fluke 1625 tester is able to measure earth ground loop resistances using only clamps – called Stakeless testing.

This method doesn’t require the use of earth ground stakes or the disconnection of ground rods.

Testing Methods:

  • 3- and 4-Pole Fall of Potential – standard earth ground testing using two ground stakes
  • 4-Pole Soil Resistivity testing – determine soil resistivity using four ground stakes
  • Selective testing – without disconnecting ground rods, a technician can measure ground resistance using a combination of stakes and a clamp
  • Stakeless testing – innovative solution using only clamps, instead of ground stakes, to measure earth ground loop resistance