Review on Superior Ultrasonic Thickness Gauge Tester Calibration for Accurate Measurements by Jay Arnold

***Updated 1/3/21***After only 4 months of relatively little use this thing is completely dead to me. Everything powers on and seems fine to be, except that it reads absolutely nothing. No measurements. When the device is not in use, it is stored in a case, in other cases it is in its original form. Pretty disappointing. *** Works very well. The battery life leaves a lot to be desired, but I like the color display and it's rechargeable. This was just right for my applications, which basically just dictated the thickness of the antenna mounts.