Features:  Basic Functions: it can measure the thickness of the non-magnetic coatings (e.g. paint, zinc) on steel, the thickness of the insulating coatings (e.g. paint) on no-ferrous metals, and the no-ferrous metals coatings on insulating substrates.  Dual Working Principle: dual technology features automatic selection of magnetic induction or eddy current measurement techniques.  Four Calibrations: zero point calibration, one point calibration, two points calibration and basic calibration, you can choose the more proper calibrate method according to the the condition or the thickness of measured surface.  Direct Working and Group Working Two Modes: the DIR mode for a quickly and randomly measuring(the measured data are not saved after shutdown or working mode switching); the rest including 30 kinds of working mode, which can save 50 data of each mode(1500 totally).  High and Low Alarm for all Working Modes: once the measured data exceed the preset range, it will alarm you.  USB Interface for PC Software: all the measured data can be uploaded to computer for data analysis.  Other Features: AGV, MAX, MIN, NO., and S.DEV statistic display; Low battery, error indication; Delete single readings and all group readings easily; Automatic shutdown, etc.  Wide Applications: it is widely used in the inspection field of automobile manufacturing, metal processing industry, chemical industry, commodity inspection, etc.    Specifications:  Material: ABS  Sensor Probe: Fe/NFe  Working Principle: Magnetic induction/Eddy current principle  Minimum Curvature Radius: 1.5mm/3mm  Diameter of Minimum Area: 7mm/5mm  Basic Critical Thickness: 0.5mm/0.3mm  Measuring Range: 0~1800μm  Guaranteed Tolerance(of reading): 0~1000: ±(2.5%+2μm), 1000~1800: ±(3.5%)  Resolution: 0~100μm: 0.1μm, 100~1000: 1μm, 1000~1800μm: 0.01μm  Low Range Precision: 0.1μm  Operating Environment: 0~40℃(32~104℉), 20%~90%RH  Power Supply: 2 * 1.5V AAA battery (NOT included)  Item Size: 113.5 * 54 * 27mm / 4.47 * 2.13 * 1.06in  Item Weight: 185g / 6.52oz  Package Weight: 816g / 28.80oz  Package Size: 27.5 * 19 * 7.5cm / 10.83 * 7.48 * 2.95in    Packing List:  1 * Thickness Gauge  1 * USB Cable  1 * CD  1 * Calibration Iron  1 * Calibration Aluminum  5 * Calibration Coating Film  1 * Carrying Case