Description: The thickness gauge is used to measure the thickness of the plated and coated sheet on metal. The gauge takes the precision integrated probe, and uses principles of electro-magnetic induction and the eddy current effect, which automatically detects the attribute of substrates. It is a perfect instrument in manufacture, metal machining industry, chemical industry and commodity inspection, especially in automobile trading. Features: Comes with iron base and non-iron (aluminum) base. Portable, user friendly and easy to carry even in pocket. Integral probe F&NF, auto detecting attribute of substrates. LCD displaying and measurement data maintaining automatically. Auto power off flag, auto power-off in 15 minutes with no-operation. Low battery indication, convenietnt to use. Easy operation,rapid measurement, safe usage and portability. Essential for material surface treatment and widely used in manufacturing industry. Specifications: Model: TC-100 Material: plastic Power supply: one 9V 6F22 battery(Not included) Range: 0-1300um / 0-51.2mil Accuracy: ±(3% 2um) / ±(3% 0.08mil) Resolution: 0.1mm/0.01mil Calibration points: 0/50/100/250/500/1000um Min curvature radius convex: 1.5mm Min curvature radius concave: 25mm Min measuring area: diameter 6mm Operation temperature: 0° ~ 40 Item size: 130 * 62 * 32mm / 4.88 * 2.44 * 1.26in Package size: 195 * 110 * 70mm / 7.68 * 4.33 * 2.76in Item weight: 100g / 3.53ounces Package weight: 350g / 12.35ounces Package Included: 1X Coating Thickness Gauge 5X Calibration Coating Films 1X Aluminum Base 1X Iron Base 1X Manual