【Product】 Mxmoonfree Ultrasonic Thickness Gauge Meter 0.8-350mm/0.03-13.77" | 0.01mm/0.001" Thickness Measuring Tools with QC Mode, Data Recording, Auto Calibration, NDT for metals, glass, ceramics, plastics 【Features】 1. WIDE MEASURING RANGE - Measuring range: 0.03-13.77 inch [0.8-350mm] | Resolution: 0.01mm / 0.001inch [0.8-100mm], 0.1mm / 0.01inch [100-350mm] | Accuracy: ±0.05mm [0.8-100mm], ±0.5% [100-350mm]; Widely used for measuring Metal and Nonmetal materials, Steel, Aluminum, Copper, Brass, Zinc, Plastic, PVC, Glass, Ceramics, Pipes... 2. TWO MEASUREMENT MODES - This thickness gauge has two measurement modes are available for switching (QC mode / Statistics mode). In ‘QC mode' , you can set the upper and lower limits to check product compliance; In ‘Statistics mode' , the gauge automatically records the last 9 data, and statistics review with Maximum / Minimum / Average. 3. ADJUSTABLE SOUND VELOCITY - The Ultrasonic Thickness Tester has three modes of sound velocity setting (Set by known material / Set by known thickness / Manual input), You can easily change the sound velocity from 1000 to 9999m/s to get the most accurate results. 4. AUTOMATIC GAIN SWITCHABLE - The material and thickness of the material will affect the strength of the signal received by the 5MHz probe, and the ultrasonic thickness meter can automatically select the appropriate gain, i.e. signal amplification, according to the material type and thickness to achieve the best measurement effect. 5. FAST, HANDHELD, COMFORT - Two units (mm/inch) are switchable, and a professional microprocessor ensures speed and accuracy of measurement. The Silicone Protective Cover has a comfortable grip and protects the device in complex working environments.