About this item Automatic Calibration Function: The ultrasonic thickness gauge probe has an automatic calibration function that allows for fast and accurate calibration and guarantees the accuracy of the measurement results. Wide Measuring Range: The ultrasonic thickness gauge probe can be used to measure the thickness of a variety of materials, including metals, non metals, plastics, glass, etc. High Accuracy: The ultrasonic thickness gauge probe can achieve micron level accuracy measurement, which can meet the needs of high accuracy measurement. Easy to Use: The ultrasonic thickness gauge probe is simple to use, simply attach the probe to the of the object to be measured and it is easy to operate. Lightweight and Portable: The ultrasonic thickness gauge probe is small and lightweight, making it easy to carry around and suitable for use on the job site.