Features 1、It can quickly and accurately measure the thickness of the non-magnetic coating on the magnetic metal substrate and the thickness of the non-metallic coating on the non-magnetic metal substrate. 2、At the same time, it can automatically identify magnetic metal substrates and non-magnetic metal substrates. 3、Widely used in manufacturing, metal processing industry, chemical industry, commodity inspection and other inspection fields. 4、With single, continuous two measurement methods, basic, zero two calibration functions, unit selection and storage functions. 5、It also features screen rotation, charging protection, multiple interface displays, screen brightness selection and automatic shutdown selection. Specification Condition: 100% Brand New Item Type: Coating Thickness Gauge Material: ABS+Metal Measurement Range 0~1300μm/51mil Resolution (0.1μm(<100μm), 1μm(≥100μm))/0.1mil Measurement Error ≤150μm, ±5μm >150μm, ±（3%H+1μm） Minimum diameter of magnetic metal substrate 12mm / 0.47in Minimum thickness of metal substrate 0.5mm/0.02in Minimum radius of curvature of magnetic convex substrate 2mm/0.07in Minimum radius of curvature of magnetic concave substrate 11mm/0.4in Minimum diameter of nonmagnetic metal substrate 50mm/2in Minimum thickness of nonmagnetic metal substrate 0.5mm/0.02in Working Voltage DC 3.7V(Li Battery 1000mAh) Package List 1 x Coating Thickness Gauge 1 x Tool Box 1 x Calibration Block (Iron) 1 x Calibration Block (Aluminum) 6 x Calibration Sheet 1 x USB Cable 1 x Instruction 1 x Rope