Instruments in this category available for hire are:
Earth Resistance Tester - Sonel MRU-105
A multifunction tester for measuring earth resistivity, electrode resistance to ground and overall earthing performance.
$80 per day
Clamp-On Ground Resistance Tester - AEMC 3075
Use a ground rod to measure grid resistance and impedance without the use of auxiliary rods.
$50 per day