3-axis Surface Precision Hall Probes

SENIS’ new series of precision Hall probes is set to revolutionize magnet inspection.

Our commitment to precision and consistency brings you closer to the magnet’s surface than ever before.

The Hall sensor is positioned beneath the surface with micron-level precision, thanks to interferometric depth control during manufacturing.

You will achieve unmatched measurement consistency because the distance to the magnet remains the same for every probe you use.


  • Better than 15µm repeatable position of Field Sensitivity Volume below the top surface
  • Measures all three 3 field components of a magnetic field (Bx, By, Bz)
  • Small sensitive volume of 150µm x 150µm x 10µm
  • Carbon fiber reinforced stiff nose for accurate positioning
  • Back part of the probe can be customized according to the requirements


  • Inline inspection of permanent magnets and systems
  • Quality control of magnets and systems
  • Application in laboratories and in production lines