Fluke 1630 Earth Ground Clamp MeterThe Fluke 1630 Earth Ground Clamp Meter is able to measure ground loop resistances using the Stakeless testing method. This test technique eliminates the dangerous, and time consuming activity of disconnecting parellel grounds, as well as the process of finding suitable locations for auxiliary ground stakes. You can also perform earth ground tests in places you have not considered before: inside buildings, on power pylons or anywhere you don't have