About the MpD
Frequently Asked Questions
Purchase the MpD
Useful Links
The MpD – Magnetic Pole Detector – was developed by a Johns Hopkins Engineer to fill the need for a reliable but inexpensive tool to determine the pole and minimum field strength of permanent magnets.

The MpD is an essential tool for:

Magnets in Alternative Health Care
Magnetic Therapy

Magnets in Industry

Magnets in Education

Magnet Tester

There are many devices currently available that measure magnetic flux density as well as identify magnet poles; these devices range from a simple child’s compass to magnetometers costing thousands of dollars; each of them have advantages and limitations in magnetic measurements.

The MpD offers a uniquely inexpensive and easy-to-use method to reliably determine the true pole and minimum strength of permanent magnetic fields.

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