Feature:1. HIGH ACCURACY PROBE: Adopts dual probe of magnetic induction and vortexing effect, used to measure the thickness of metal non conductive coating, magnetic metal and non magnetic coating.2. MEASURING RANGE: Automatically calculate the thickness of the coating, with a measurement range of 0-2000um and a measurement accuracy of (3%+1UM), has zero calibration function.3. BACKLIGHT DISPLAY: The thickness gauge has a large screen with backlight display function, displaying units, metal type, working mode, quantity, battery status and reading, clear and intuitive.4. HIGH EFFICIENCY: Supports automatic recognition of metal substrates, with 2 readings per second for quick measurement of coating or plating thickness on metal surfaces.5. APPLICABLE SCENES: Suitable for checking car paint thickness, powder coating, anodized aluminum oxide, bathroom accessories, furniture, computers, electrical appliances, and toys.Specification:Item Type: Coating Thickness GaugeModel: HW 300MINIMaterial: ABSMagnetic Induction: Measurement principle (F probe), vortexing effect (N probe)Measurement Range: 0-2000umMeasurement Accuracy: (3%+1UM)Unit: Um, mm, milsZero Point Calibration: SupportMinimum Convex Curvature: 5mmMinimum Concave Curvature: 25mmMinimum Measurement Area: 20mm / 0.8in DiameterMinimum Substrate Thickness: 0.2mm (F probe), 0.05mm (N probe)Maximum Measurement Speed: 2 readings per secondPower Supply: 2 x 1.5V AAA batteries (battery not included)Working Environment: 0-50, 20-90% relative humidity (non condensing)Storage Environment: -10-60, 20-90% relative humidity (non condensing).Package List:1 x Coating Thickness Gauge6 x Calibration Films1 x Substrate1 x User Manual