Twin crystal probes are particularly suited to measuring heavily corroded metals. They are used with our gauges in two measuring modes. In Echo-Echo mode, up to 1 mm (0.040 inch) of surface coating can be read through and ignored. Single-Echo mode should only be used when there are no surface coatings.
General purpose heavy front/back wall corrosion or wall pitting
Frequency: 5 MHz
Tip size: 13 mm