DeFelsko Coating Thickness Gages, Gauges and Inspection Instruments, Adhesion Tester, Dew Point Meter, Ultrasonic Thickness Gages and Meters
Science, Technology, Acoustics, Ultrasound and Vibration, Ultrasound - DeFelsko Corporation. Manufactures a line of non-destructive, hand-held coating thickness gages which use magnetic, eddy current and ultrasonic principles.
https://www.defelsko.com/