Ultrasonic Thickness Gauge, Digital Display, Ultrasound, 0.03" - 15.7" (0.65 mm - 400 mm) RangeAble to gauge thickness measurement without requiring access to both sides of the test piece Determines sample thickness by measuring the amount of time it takes for sound to traverse from the transducer through the material to the back end of a part and back Calculates the data based on the speed of the sound through the tested sample Capable of performing measurements on a wide range of material including metals, plastic, ceramics, composites,