Features 1、Automatic Recognition: This coating thickness gauge eliminates the guesswork of testing surfaces coating by automatically distinguishing between ferrous and non ferrous substrates, enhancing work efficiency 2、Large LCD Display: Featuring a large LCD screen, the coating thickness meter clearly displays metal type, working mode, serial number, battery status (µm or mil unit), providing a simple and intuitive user interface 3、Backlight Screen: Designed for garages, workshops, and other dimly lit settings, the LCD thickness gauge ensures easy readability during detailed inspections, improving accuracy and expediting task completion 4、Applications: Suitable for checking coating thickness on car paint, powder coatings, anodized aluminum, bathroom accessories, ride frames, stadium seating, outdoor sheds, furniture, swings, storage cabinets, computers, electrical appliances, and toys 5、High Accuracy and Reliability: The paint depth thickness gauge offers accurate measurements tailored to various coating materials, ensuring reliability and accuracy across diverse thickness measuring needs Specification Item Type: Coating Thickness Gauge Material: ABS Data Storage: 20 sets Unit Switching: um/mil Auto Power Off: 15 minutes Measurement Range: ±(3%+2um), ±(3%+0.08mil) Resolution: 0.1um/0.01mil Calibration: ZERO/50/100/250/500/1000um Convex Minimum Curvature Radius: Approx. 1.5mm / 0.06in Concave Minimum Curvature Radius: Approx. 25mm / 1in Measuring Area Minimum Diameter: Approx. 6mm / 0.24in Operating Environment: 0-40℃, 20%-90%RH Power Supply: 2 x 1.5V AAA Battery (not included) Package List 1 x Coating Thickness Gauge 1 x Fe Substrate 1 x NFe Substrate 6 x Standard Foils 1 x User Manual