Is Earth Resistance and Resistivity Meters AMRU 200 the only meter in the market which uses all measurement methods?
Earth resistance measurement with 2-pole, 3-pole, 4-pole method.
I leave the Amperis link
I think this option is good, but I want to know if there is another option. Thank you very much
The DDR 3 Resistivity Meter is a specialized version of IGIS Resistivity meters designed for use in Resistivity surveys up to about 200m depth. It utilizes rechargeable batteries as power source to energize the ground thus eliminating the necessity of using the relatively expensive dry cells