Coating Thickness Gauge] [Zhengzhou Zhengzhou Megumi nationwide coverage Instrument Co., Ltd. Tel :0371-55676313 GM220 thickness measuring range: 0 ~ 1800μm Accuracy: ± (3% H ± 1μm) Resolution: 0.1μm (100μm ) with high sensitivity probe for precise measurement with zero, two-point calibration method and the basic three kinds, ready for quick error correction system measurement modes: single measurement / continuous measurement / differential measurement data storage / data query / Data Statistical measurement data delete function maximum, minimum, mean, standard deviation, and number of measurements buzzer prompts metric conversion Low battery indication Auto power off the LCD backlight function Packing: Color Box + PP box Power Tools : 9V battery Product Weight: 147 g Size: 67 * 30 * 183 mm Instrument Co., Ltd., Zhengzhou Megumi Contact: Gujingli responsible Tel: 0371-55676313 Fax 0371 -66,227,105 Business QQ: 2417674438 Address: Zhengzhou City West Street, South Street intersection (Tube City Commission three hundred meters south entrance) Website: www.hm5117.cn