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Earth & Ground Resistance Testers
Earth & Ground Resistance Testers
It is critical for facilities to have well grounded electrical systems, so that in the event of a lightning strike or utility overvoltage, current will find a safe path to earth. To ensure a reliable connection to earth, testing of the ground electrode and associated system must be carried out on a periodic basis
Earth resistance and resistivity measurements can be accomplished using several test methods: 3 and 4 pole fall of potential testing, selective measurement testing, stakeless testing and 2 pole testing. See also our section on Multifunction Installation Testers for more products with earth testing capability
![Earth Resistance Meter, Earth Test Kit with GPS recording, Sonel MRU-200](https://images.zeald.com/site/pro-test/images//items/mru-200_p_gps.jpg)
Sonel MRU-200-GPS Earth Resistance and Resistivity Tester - CATIV
![Ground Resistivity Tester Sonel MRU-200](https://images.zeald.com/site/pro-test/images//items/mru-200_l.png)
Sonel MRU-200 Earth Resistance and Resistivity Tester - CATIV
![Earth Resistance Tester & Soil Resistivity Meter, CAT IV, Sonel MRU-120](https://images.zeald.com/site/pro-test/images//items/MRU-120 L.jpg)
Sonel MRU-120 Earth Resistance and Resistivity Tester - CAT IV
![Earth Resistance and Resistivity Tester, IP67 Waterproof, Sonel MRU-120HD](https://images.zeald.com/site/pro-test/images//items/MRU-120HD_earth resistance tester_heavy duty.jpg)
Sonel MRU-120HD Earth Resistance and Resistivity Tester - CATIV
![Earth Resistance Tester, CATIV, Sonel MRU-21](https://images.zeald.com/site/pro-test/images//items/mru-21_l.png)
Sonel MRU-21 Earth Resistance Tester - CATIV
![Earth Resistance and Resistivity Tester, Sonel MRU-30](https://images.zeald.com/site/pro-test/images//items/MRU-30.png)
Sonel MRU-30 Earth Resistance and Resistivity Tester CAT III
![Handheld Earth Resistance Meter, Sonel MRU-10, CAT IV](https://images.zeald.com/site/pro-test/images//items/MRU-10b.png)
Sonel MRU-10 Handheld Earth Resistance Meter, CAT IV
![FLIR Clamp-on Earth Resistance Tester](https://images.zeald.com/site/pro-test/images//items/382357.jpg)