The VM-810 operates at 83.1kHz which is ideal for water and gas utilities which generally are larger pipes with bell housings and gaskets. The VM-810’s higher frequency is also good for locating ungrounded small diameter drop wires and inducing signals through the soil, onto services when direct connecting is not an option.
48IN SOIL PROBE W/METAL TIP
For thicker coatings such as coal tars, extruded and tape coatings, the Model 785 has a range of infinite voltage settings from 1,000 to 15,000 volts. This wide range permits you to maintain a steady inspection rate on most types of coatings on most pipe sizes without changing detectors. Pulse voltage output only.
5IN INDUCTION CLAMP W/13FTCBL
HOLIDAY DETECTOR SPY790% 5000-35000 VOLT
VOLTAGE TESTER- LOW VOLTAGE% FOR 715
HOLIDAY DETECTOR SPY780 1000-5000 VOLT