Twin Crystal Ultrasonic Probes
Cygnus Instruments
Price not listed
Particularly suited to measuring heavily corroded metals in either Echo-Echo or Single-Echo mode. 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.
Cygnus Instruments's own words, read from their page.
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