This device is a portable meter. It is capable of measuring coating thickness quickly, precisely and without injury,both for the laboratory and engineering environment. It is currently widely used in manufacturing, metal processingindustry, chemical industry, commodity inspection and testing fields; and is essential for material protection major. This device meets the following criteria: GB/T ***6-***5 non-magnetic coating thickness measurement on magnetic metal substrate, MagneticMethod JJG **9-*5 "Reluctance thickness " Features l Thickness measurement using Magnetic Method to measure the non-magnetic coating on a magnetic metalsubstrate. l Single-point or two-point method could be used to correct probe system deviation, in order to ensure theaccuracy of the device in the process of measuring. l Power voltage indicator. l Speaker beep while operating. l Power-off automatically when idle; manually power-off available. l Negative display function to ensure the accuracy of zero point calibration. l Ultra-low power consumption, less than *0 μA in standby mode. Technical Data l Measuring range: *****0 μm l Power supply: 2 * AA batteries l Measurement deviation: zero calibration ± (1 + 3% H); two-point calibration ± [(1% ~ 3% H)] H + 1.5 l Ambient temperature: ***0 ℃ l Relative humidity: ≤*5% l Minimum substrate: *0 * *0mm l Minimum curvature: 5mm convex; 5mm concave l Thinnest substrate: 0.4mm l Weight: *9g (with battery) l Size: **2mm * *6mm * *4mm