EEC-39 4-frequency & 2-channel eddy current instrument is designed with full digital electronic technique, eddy current technique and micro technique to meet different testing demands The four frequencies can help to get higher testing coverage, higher testing frequency can be well used for surface inspection while lower frequency has high sensitivity for subsurface defects EEC-39 is a multi-purpose instrument, which allows you to detect multiple types of defects simultaneously, such as surface and sub-surface flaws, for faster & easier inspections EDDYSUN owns the advanced mixing algorithms, providing the cleanest and the most effective signal mixing This can greatly improve the signal-to-noise ratio With tube sheet function, EEC-39 can get good result while testing defects and measuring wall thickness of in-service tubes (Cu, Ti, Al etc ) It’s widely used in departments of nuclear energy, electric power, petrifaction and spaceflight Designed with full-digital technique, users can easily store testing data and parameters and read them out for local testing