Material thicknesses can be reliably detected within a few seconds using layer thickness meters. Precisely calibrated, they can maintain measuring accuracy of over 99 per cent. Numerous sectors benefit from these devices as a result. Used car dealers can test the vehicle's paintwork and determine whether and how often the car has been resprayed. It is also possible to test for corrosion. This provides safety and certainty during sales negotiations. These measuring devices are also used for monitoring products in the industrial paints and coatings sector. Estimating with the naked eye or spot drilling is no longer necessary. Layer thickness meters are also used in shipbuilding, bridge construction and power plants.