Use: These thickness gauges are used to measure the thickness of metal coatings and coatings such as paint, enamel, on steel, paint and anodized coatings on alumm, copper. Automatic detection of substrate properties. Small in Size: The coating thickness gauge tester is small in size, high in accuracy, battery level indicator function, automatic shutdown function. Practical: This coating thickness gauge is used to non destructively measure the thickness of coatings and paints. It is an essential equipment for material surface treatment. Small in Size: The coating thickness gauge tester is small in size, high in accuracy, battery level indicator function, automatic shutdown function. Practical: This coating thickness gauge is used to non destructively measure the thickness of coatings and paints. It is an essential equipment for material surface treatment.