Operating Principle: Eddy Current (NF). Measuring Range: 01000 um / 040 mil. Resolution: 0.1 um / 1 um. Radius Workpiece: NF Type: convex 3 mm / concave 50 mm. Sample Thickness: 0.3 mm.
Accuracy: +/- 13%n or +/- 2.5 um. Battery Indicator: Low Battery Indicator. 040 degree, Humidity: 1090 %RH. Power Supply: 4 x 1.5 V AA (UM-3) Battery. Dimensions: 161 x 69 x 32 mm.Weight: 210 g (Not Including Batteries). Calibration Base Set (NF Type) CTG-BS. Calibration Foils CTG-CF (1 set, 4 pieces). Thank you for your support. We are not responsible for undeliverable address. Dear friend, your happy is very important to me! We stand behind every product we sell. You can enjoy top-quality product and high-quality services from us, Trust me that you will have a pleasant shopping experience in here. We will be happy to assist you. We would try our best to serve you with any question / problem.