Our selection of digital fall-of-potential earth ground resistance / impedance testers covers the most capable and reliable ground testers on the market including models from Fluke and AEMC.

Fluke fans can choose from the Fluke 1623 and Fluke 1625 models. The most popular impedance testers from AEMC are the AEMC 4620 and AEMC 4630 (which adds a field rechargeable battery) and the brand new top-of-the line AEMC 6470. AEMC is a leading manufacturer of ground resistance testers.