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UT521 Earth Resistance Tester
UNI-T’s UT521 is a 2000-count digital earth ground tester. It features ACV earth voltage test, data hold/storage and over-range display.

UT520 series earth resistance tester has the functions of backlight display, low battery display, data hold, data storage, auto power off and power saving. It can not only be used for accurate three-wire measurement but also simple two-wire measurement. 

It is applicable to measuring the earth resistance of all kinds of electrical power system, electrical equipment and anti-thunder equipment. It can also measure the earth voltage. It is applicable to testing operating earth systems of smelting, communication, manufacture, fossil oil, national defense, electricity, chemical industry and construction.



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