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High Quality PQWT-S500 100/150/300/500m Underground Water Detector
PQWT-S500.500M deep underground water detector
The Instrument called (Natural Electric Field Frequency Selection System) geophysical instrument, shortly known as frequency system.
Instrument working on the principle of the electrical difference of natural earth magnetic field, the several different frequencies of electromagnetic field changes is the law to study the underground field material changes to solve the Geological problems.
The measurement data is Self-potential, and the unit is millivolt.
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