Coating thickness gauge is designed to control:

Thicknesses of various thick protective coatings on various metals and alloys;
Thickness of paint and other dielectrics – radioabsorbing, mastic, teflon, plastic, electroplating coatings on steel;
The thickness of electroplating and paint coatings on non-ferromagnetic alloys and non-ferrous metals;
Thickness of the bitumen and other thick coatings on various metals and alloys;
As well as relative humidity, air temperature, surface temperature, dew point temperature and difference between surface and dew point temperatures, estimate the depth of grooves and the surface roughness

Electronic thickness gauge – a device which widely used in shipbuilding and automotive industries for measuring the thickness of paint, in order to control the quality of products, also it used for determining technical condition of the controlled objects.