Measuring resistivity, engineers under our direction have perfected a method of using special electronic charging waves that charge the ground ａnd measure the returning resistivity of the wave. It is similar to a standard metal detector, except with a metal detector you are limited to the size of the search coil, with very little depth ａnd area coverage.

With the  a signal is sent out to look for targets as deep as 130 feet. Imagine the amount of time you save ａnd the ground you can cover!