An ultrasonic technique is used when measuring the thickness of paint. The probe of the instrument contains an ultrasonic transducer that sends a pulse through the coating. The pulse reflects back from the substrate to the transducer and is converted into a high-frequency electrical signal that is analyzed to determine coating thickness.

The PCE-CT 28 coating thickness meter/gauge for cars is for measuring the thickness of paint and plastic on ferrous or non-ferrous materials without damaging the coating's surface. The coating thickness meter/gauge stands out due to its high range of measurement. This coating thickness meter/gauge should be one of the tools used by technicians in areas of paint or lacquering such as in production, automotive body repair or quality control.

The coating thickness meter/gauge is particularly useful in detecting damage to vehicles produced by an accident, for preventing possible damage or as a toll in auto body repair. Also, in the industrial sector, this device is essential for quality control in shipping and receiving, and during production. It is ergonomical, with an integrated sensor, and it shows results of measurements quickly and accurately. It was designed for non-magnetic coatings such as plastic, chrome, zinc, copper and insulation such as rubber, plastic, glass and paper over steel, iron, aluminium, brass and stainless steel. Thanks to its wide measurement range, the coating thickness detector is ideal for the naval and metal industries

Paint thickness over exterior automotive materials is best measured with hand-held, electronic instruments.

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