Grounding Surveys Ultra MiniRes


The Ultra MiniRes is the third model in the MiniRes line and the most recent. It is likely the most accurate resistivity and IP field instrument available today. This 2.5 Hz model is a great all-around instrument for grounding and mining reconaissance surveys. At 2.5 Hz, it takes a little longer for the readings (because of the lower frequency rate) but is capable of larger "a" spacings - out to 1000 feet! The accuracy and repeatability have made the Minires a favorite for those working soil resistivity surveys for grounding of power and pipeline protection systems.

Power Source: 4 Standard "D" Size batteries
Input Resistance: 200 Megohms
Transmitter current choices: 2.0 or 20.00 milliamps
Resistance resolution: 0.1 milliOhm= 100 microOhms
IP resolution: 0.01 milliOhm

Do you need wire for Wenner Array soundings?

For max a-spacings up to 300': Wenner 300

For max a-spacings greater than 300': Wenner over 300


25 x 20 x 9 inches


24 lbs

Rental per day





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