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: 0~1800m Guaranteed Tolerance(of reading): 0~1000: (2.5%+2m), 1000~1800: (3.5%) Resolution: 0~100m: 0.1m, 100~1000: 1m, 1000~1800m: 0.01m Low Range Precision: 0.1m 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