The thickness gauge is used to measure the thickness of the plated and coated sheet on metal, e.g. paint/enamel/ chrome on steel, paint and coating on aluminum/copper. The measuring range is 0-2000UM. 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. The Gauge is designed for non-destructively measuring the thickness of coating and painting. It is essential for material surface treatment and widely used in manufacturing industry, metal-processing industry, chemical industry, commodity inspection area, and also able to work steadily in the laboratory, workshop and outdoor. Product name: -300 coating thickness gauge Resolution: 0.01mm/1mil Measurement accuracy: (3%+1UM) supply: 2 1.5V AAA batteries (not included) Operating temperature: -10 degrees Celsius 50 degrees Celsius Colour:white Material:ABS Size:110 x 52 x 25MM Package Contents: 1 x Thickness gauge Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.