https://www.mikrometry.com/products/coating-metal-thickness-gauge/
Coating Metal Thickness Gauge
Mikro metry coating metal thickness detector will measure all coatings on metallic substrates using the magnetic induction or eddy-current principles, ensuring the correct measuring paint thickness on metal has been applied, such as paint, lacquers, sealants, or plating. The digital coating thickness gauge meter is a professional and easy-to-use tool. High dust, gas pollution, changes in humidity and temperature will not stop the operation of this painting thickness measuring instrument.