EXTECH GRT350 4-Wire Earth Ground Resistance/Resistivity Tester

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  • Earth resistivity (p) test
  • 4-wire, 3-wire, and 2-wire testing
  • Large dual line LCD
  • Automatic I (current) and P (potential) spike check
  • Test Hold function for easy operation
  • Autoranging, Data Hold and Auto Power off
  • AC Earth Voltage
  • Store/recall up to 200 test results
  • Overrange and low battery indication
  • Complete with test leads with alligator clips, 4 auxiliary earth bars, hard carrying case, and eight 1.5V AA batteries