Features 1、MAGNETIC INDUCTION AND EDDY CURRENT DUAL PRINCIPLE PROBE: Thickness gauge is mainly used to measure the non conductive coating on the metal surface and the non ferromagnetic coating on ferromagnetic metal(such as iron, nickel drill, etc.), such as the paint thickness on the automobile surface and the coating thickness of metal parts. The metal substrate under test can be automatically identified and the thickness of the coating can be calculated automatically simply by placing on the surface under test 2、HIGH ACCURACY COATING THICKNESS TESTER: Possess ± 3%+1UM measuring accuracy, 0~2000um measuring range, with a simple and rapid zero calibration, can quickly and accurately measure the coating or coating thickness on almost all metal surfaces 3、EASY TO READ DISPLAY: Paint depth gauge with large backlit display displays metal type, operating mode, quantity, battery status, and readings in µm, mm, and mils units 4、FOR USED CAR MARKET: A car that has been painted visually conceals everything that doesn't tell you it has been in a serious crash. When buying a used car, check the car paint to make sure it is roughly the same thickness on each panel. This high accuracy coating thickness gauge is ideal for you 5、FOR A VARIETY OF APPLICATIONS: Utility multifunctional meters are ideal for checking car paint thickness checkers such as used car paint, powder paint, anodized aluminum, bathroom accessories, bicycle frames, stadium seats, outdoor sheds, furniture, swings, cabinets and lockers, computers, appliances and toys Specification Item Type: Coating Thickness Gauge Material: ABS Magnetic Induction: Measurement principle(F probe), eddy current effect(N probe) Measurement Range: 0~2000um Measurement Accuracy: ±(3%+1UM) Unit: Um, mm, and mils Zero Calibration: Supported Minimum Convex Radian: Approx. 5mm / 0.2in Minimum Concave Radian: Approx. 25mm / 0.98in Minimum Measuring Area Diameter: Approx. 20mm / 0.79in Minimum Base Thickness: 0.2mm(F probe) or 0.05mm(N probe) Maximum Measurement Speed: 2 Readings per second Power Supply: 2 x 1.5V AAA batteries(not include) 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 Gauge 6 x Calibration Film 1 x Substrate 1 x User Manual