Electronic gauge that allows you to check the thickness of the varnish layer on aluminum and steel coatings. It is used for non-invasive measurement of paint thickness on car bodies and for measuring the thickness of non-magnetic coatings (including paints, varnish, glass, plastic, epoxy resin, putty, etc.) on steel, galvanized steel and aluminium. The meter is also used to check the thickness of the varnish coat before starting the polishing process.