Specifications Measuring: Magnetic material 0-1700µm , Nonmagnetic material 0-1700µm, Resolution : 0.1?m@ (0~99.9µm), 1?m@ (100-1700µm), Indication error: (2+2%*H)µm @ (0-500µm) , +(2.5%*H)µm @ (500~1700µm), Min measuring area: Magnetic material 25×25mm; Non magnetic material 25×25mm, Min curvature: Convexity 5mm; concave 30mm, Min substrate thickness: Magnetic material 0.2mm; Non magnetic material 0.05mm Screen: Segment screen Memory : 30 sets, Battery specification : 2x1.5V AAA, Working temp and humidity: 0°C~50°C, 10%~80%RH, Storage temp and humidity : -10°C~60°C, 10%-70%RH, Dimension: 120x52x27mm, How to Use: After installing the applicable battery, turn on the switch to measure. Package List: 1 x Thickness Gauge 1 x Manual 4 x Calibration Sheet 1 x Accessories