Ground resistance testers test the earths electrodes and the measurement of soil resistivity. Use them to troubleshoot systems and in your preventive maintenance programs. Find earth clamp meters and field testers in this category.
Measures soil resistivity (4-Point). Measures ground resistance (2- and 3-Point) Fall-of-Potential method. These direct reading testers measures from 0 to 2000Ω, and are autoranging, so that they can automatically seek out the optimum measurement range.