The instrument adopts the magnetic and eddy current principle to measure in a non-destructive way
A)Magnetic way (TBT-TT2100F)
Measuring the thickness of non-magnetic coatings on magnetic metallic base (e.g. zinc, aluminum, Cr. Copper, rubber, paint, coating on the base of steel, iron, alloy and hard magnetic steel etc.)
B)Eddy currentway (TBT-TT2100N)
Measuring all electrically insulating coating layers, such as lacquer, Varnish, paint, anodizing coating on nonferrous metals, also on austenitic VA steel materials