Features 1、AUTO MATERIAL RECOGNITION: Our coating thickness gauge could automatically recognize and measure the thickness of coatings on both magnetic metals (Fe based) and non magnetic metals (NFe based) surfaces. 2、LOW POWER CONSUMPTION: This thickness gauge will automatically switch off after ten minutes of no operation, conserving power and providing peace of mind. 3、BACKLIT LCD DISPLAY: Featuring a backlit LCD display, this thickness gauge ensures high precise measurements that are clearly visible even in dimly lit environments, making your work more convenient. 4、CUSTOM CALIBRATION: This gauge allows you to fine tune measurements by using two calibration plates (one heavy, Fe based and one light, aluminum based) placed flat on a table, along with standard plate. 5、COMPACT AND PORTABLE: Lightweight and compact, this coating paint thickness tester is easy to carry and transport, making it a convenient tool for various applications. Specification Item Type: Coating Paint Thickness Gauge Material: ABS Probe Type Fe probe (iron based) Fe+Zn (galvanized based) NF probe (non magnetic substrates such as aluminum copper) Principle Electromagnetic induction Eddy current effect Measuring Range 0~1500μm 0~59.1mil 0~1500μm 0~59.1mil Accuracy ± (3%+2μm) ± (3%+0.08mil) ± (3%+2μm) ± (3%+0.08mil) Resolution 0.1 μm/0.01mil 0.1 μm/0.01mil Calibration Zero calibration; Multipoint calibration Unit μm, mil Minimum Convex Curvature Radius 1.5mm/0.06in Minimum Concave Curvature Radius 25mm/0.98in Minimum Measurement Area Diameter 6mm/0.24in Minimum Substrate Thickness 0.5mm(0.02in) 0.3mm(0.012in) Power Supply AAA x 2 (shipped without battery) Operating Environment Battery temperature: -20-40 ℃ (-4-104℉) Humidity: 20%~90% RH; No strong magnetic field Package List 1 x Coating Paint Thickness Gauge 1 x Drawstring Storage Bag 5 x Calibration Standard Board 2 x Iron and Aluminum Based Plate 1 x Instructions 1 x Hanging Rope