Ultrasonic Thickness Gage

' Ultrasonic Thickness Gage, Ferrous and Non Ferrous Base Material, Measuring Range 0.040 to 5.0 In (1 to 125mm), Accuracy +/-0.00 In and +/-0.01mm, Velocity Ranges 0.0492 to 0.393 In/uSec, 1250 to 10, 000 M/Sec, Measurement Rate 6 Readings/Sec, Frequency 5 MHz, Data Storage, Interface USB + IR Printing, Recording Capacity 250 Readings, Cord Length 3 Ft, Standards ASTM E797, NIST Calibration Certificate, Includes 3 AAA Batteries, Protective Holster, Couplant, Nylon Carrying Case and instructions '