Features 1、[Automatic Recognition] With the automatic recognition function of the substrate, the dual purpose of iron and aluminum. 2、[Metric And Imperial Unit] Metric and imperial unit selection, zero point calibration, holding the screen flip, suitable for different test environments. 3、[High Definition Backlight] Thickness gauge with high definition backlight, with continuous measurement mode, with difference measurement mode. 4、[High Accuracy] Using micron level high accuracy small caliber probes, automatically identify the properties of the substrate material, and quickly sense. 5、[Widely Application] Car paint thickness tester is widely used in manufacturing, metal processing, chemical, commodity inspection and other inspection fields. Specifications Item Type: Coating Thickness Gauge Product Size: Approx. 12.3 x 6 x 2.5 cm / 4.8 x 2.4 x 1 in Application: Paint coating, plating, film, anticorrosive paint, fireproof coating, automotive paint Measurable Objects (The Material To Be Tested Can Be Measured When The Material Meets The Following Conditions): Non magnetic covering layer, non metal covering layer, magnetic metal substrate, non magnetic metal substrate Weight: Approx. 279g / 9.8oz Measuring Range: 0~1800μm/70.8mil/1.8mm Resolution: (0.1μm(<100μm),1μm(≥100μm))/0.1mil/0.001mm Measurement Error: ≤150μm, ±5μm >150 μm, ±(3%H+1μm) Minimum Diameter of Magnetic Substrate: 12mm Minimum Thickness of Magnetic Substrate: 0.5mm Minimum Curvature Radius of Magnetic Convex Surface: 2mm Minimum Curvature Radius of Magnetic Concave Surface: 11mm Minimum Diameter of Non Magnetic Substrate: 50mm Minimum Thickness of Non Magnetic Substrate: 0.5mm Range of Working Temperature: -20~+40℃, it is recommended to use in different environments, especially when the temperature difference is large, it needs to be recalibrated before use Working Humidity Range: 10~95%RH Battery: 2 x 1.5V AAA alkaline battery (Battery Not Included) Unit UNIT/Up Button: Short press can switch between μm, mil, mm, and the calibration data increase key Unit MODE Measurement Mode/Screen Flip/Down Key: Short press can sequentially switch between SNG single measurement, CTN continuous measurement, and DlF difference measurement. Long press to flip the screen and calibrate data reduction key Unit CAL Backlight/Calibration Key: Short press to turn on/off the backlight, long press to enter/exit calibration Package List 1 x Coating Thickness Gauge (Battery Not Included) 1 x Plastic Storage Bag 6 x Calibration Sheet 2 x Metal Sheets 1 x Cloth Storage Bag 1 x Rope 1 x Yellow Accessories 1 x English Manual