Accurate Measurement: Utilize the Ultrasonic Thickness Gauge to measure thickness with high precision, suitable for materials including steel, glass, plastic, and ceramic. Versatile Use: Perfect for professionals in manufacturing, engineering, and maintenance fields, or for educational purposes in schools and workshops. Rechargeable Battery: Equipped with a rechargeable battery, ensuring long hours of continuous use without the need for frequent replacements. Portable Design: and compact, this thickness meter is designed for easy port and on-the-go measurements. User-Friendly Interface: Features a clear display and simple controls for effortless operation, making it accessible even for beginners. Color: Black & Gray Material: Metal+Plastic Package Contents: 1 x WT100A Thickness Gauge Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.