Ultrasonic Thickness Gauge, Includes Carrying Case, Probe, Ultrasonic Couplant Gel, Ultrasonic Thickness Gauge, Thickness Measurement Accuracy +/-0.1 Percent, Thickness Measurement Resolution 0.01 in, Calibration Certificate Type Available Separately, Maximum Frequency 5 MHz, Maximum Thickness Measured 15.7 in, Minimum Thickness Measured 0.03 in, Maximum Velocity 9,999 mps, Minimum Velocity 990 mps, Number of Digits 4, Minimum Frequency 5 MHz, Number of Records Stored 500, Standards CE