standard blocks test

Pie gauge block test is used for indicating the field direction and being multidirectional.

Berthold block test

Berthold block test is used for indicating the permeability and rotation of the field.

Special gauge for measuring magnetic field hysteresis

These types of gauges are provided in two models: -10 to +10 Gauss and -20 to +20 Gauss.

MTU block test

MTU block test is used to indicate the quality and density of the materials, according to ASTM E1444 standard, the crack detecting solution should be tested with this gauge every 8 hours. This test block has an image for comparison that MTU must be compared with it after soaking in the solution.