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 Gauge Model: HW 300MINI Material: ABS Magnetic Induction: Measurement principle (F probe), vortexing effect (N probe) Measurement Range: 0-2000um Measurement Accuracy: ±(3%+1UM) Unit: Um, mm, mils Zero Point Calibration: Support Minimum Convex Curvature: 5mm Minimum Concave Curvature: 25mm Minimum Measurement Area: 20mm / 0.8in Diameter Minimum Substrate Thickness: 0.2mm (F probe), 0.05mm (N probe) Maximum Measurement Speed: 2 readings per second Power 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