Features Main Function --- Mainly used to measure the thickness of metal coatings, such as paint on steel, paint on aluminum and copper, and anodized coatings, automatically detecting the properties of the substrate. Data Recording --- Can simultaneously record average, maximum, minimum, and difference values, support up to 50 data for statistics. If there is no operation within 3 minutes, the gauge will automatically shut down. 3 Units Switching --- This thickness gauge has 3 units of um mm mils, button switching, quickly and accurately measure the thickness of coatings and electroplated coatings, meeting more usage needs. Applicable Scenes --- Used to measure the thickness of non conductive coatings on metal surfaces, non ferromagnetic coatings on ferromagnetic metals, and paint thickness on automotive surfaces. Applicable Fields --- The measuring range is 0‑2000um, suitable for manufacturing, metal processing industry, chemical industry, commodity inspection, laboratory, workshop, and automotive industry, etc. Specification: Item Type: Coating Thickness Gauge Material: ABS Battery: 2 x 1.5V AAA Battery (battery not included) Measurement Range: 0-2000um Measurement Accuracy: ±(3%+1um) Resolution: 0um-999um (1um) Minimum Convex Radian: Approx. 5mm / 0.2in Minimum Concave Radian: Approx. 25mm / 1in Minimum Measurement Area: Diameter 20mm / 0.8in Minimum Substrate Thickness: 0.2mm Maximum Measurement Speed: 2 readings per second Product Size: Approx. 8.5 x 4 x 3cm / 3.3 x 1.6 x 1.2in Package List:1 x Coating Thickness Gauge6 x Standard Films1 x Substrate1 x User Manual Package List 1 x Coating Thickness Gauge 6 x Standard Films 1 x Substrate 1 x User Manual