Introduction 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 processing industry, chemical industry, commodity inspection and testing fields, and is essential for material protection major. Principle GB/T 4956─1985 non-magnetic coating thickness measurement on magnetic metal substrate - Magnetic Method When the probe contacts the cover layer, the probe and magnetic substrate forms a closed magnetic circuit; Due to the presence of non-magnetic coating, magnetic resistance changes. The thickness of the cover layer can be derived by measuring the change. Specification Measuring range: 0-1250μm Power supply: 2 * AA batteries Measurement deviation: zero calibration ± (1 + 3% H); two-point calibration ± [(1% ~ 3% H)] H + 1.5 Ambient temperature: 0-40 ℃ Relative humidity: ≤85% Minimum substrate: 10 * 10mm Minimum curvature: 5mm convex; 5mm concave Thinnest substrate: 0.4mm Weight: 99g (with battery) Size: 102mm * 66mm * 24mm Packing List Main device*1pcs Standard films*5pcs Base substrate*1pcs Packing box*1pcs User Manual*1pcs