Measures metal thickness to determine wastage or corrosion - accurately, quickly and without removing surface coatings. Metal thickness and corrosion checks on ship Hulls, anchor chains. System used for "Ships classification surveys" : CYGNUS, UNDERWATER, MULTIPLE ECHO ULTRASONIC Digital Thickness Gauge Cygnus multiple echo, single crystal probes mean : - Coatings do not have to be removed - Accepted by major classification societies. - No grinding, minimum surface preparation. - Measures on rough corroded surfaces. - Speed, accuracy and reliability. - No false readings, repeatable results. - Easy to use, minimum operator training. - Greatly reduced inspection time and cost. - Measures on metals and some other materials.