Amprobe GP-2 GEOTEST Ground Resistance Resistivity Tester

(3 customer reviews)

  • Measures earth ground resistance – 3 point (fall of potential) or 2 point tests
  • Automatically calculates resistivity – 4 point test
  • Automatic voltage measurement prevents false measurements
  • Automatically applies three testing frequencies for the most accurate readings
  • Test leads, auxiliary electrodes and software are included for complete instrument
  • Auto ranging
  • 999 internal memory locations to store measurements
  • RS-232 download to a personal computer


For installation and troubleshooting, this instrument provides accurate and reliable measurements of ground resistance to help you reduce power quality problems.


Ground resistance 1999 O
Ground resistivity 199.9 kOm
AC Currrent
AC Voltage 0 → 500.0 V


What’s Included

  • GP-2
  • Connection cables
  • 4 ground stakes
  • PC software and USB cable
  • Carrying case
  • Batteries (installed)


Datasheet »
Product Manual »

3 reviews for Amprobe GP-2 GEOTEST Ground Resistance Resistivity Tester

  1. ManuelParedes

    Very usefull tool to comply with standards

    Very practical and usefull tool that comply with NEC, IEEE and MIL-HDBK-419A for resistivity and earth resistance test. Very handly for field testing.

    ✔ Yes, I recommend this product.

  2. david77diaz

    An excellent product! Amazing!

    Somebody lended me this equipment and I have been using this product for doing soil resisitivity tests all around my country (Venezuela). It’s really light, comfortable for transporting, accurate, easy to use, and the designs of grounding systems that I have made using the data I acquired from the equipment have been really sucessful. Thanks God It has helped us to save money in my company. I recommend this product. If I could have one of this product for my own use I purchased it as soon as possible!

    ✔ Yes, I recommend this product.

  3. boomer1

    excellant product

    having worked in the automotive repair business for several years, i had Amprobe testers, and they were always perfect, worked as advertised, now, i am into computer maintenence, and rewireing older homes, this tool has to be the most positive and accurate tool to work with. my son is a hvac technician, he has several Amprobe testers, and praises them all. what more to say, they are perfect for every task,

    ✔ Yes, I recommend this product.

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