The thickness gauge is used to measure thickness of metal plating and coatings, such as paint/enamel/chrome on steel, paint and anodized coating on aluminum/copper. Automatically detect properties of substrate. The instrument is used to non-destructively measure thickness of coatings and paints. It is an essential equipment for material treatment and is widely used in manufacturing, metal processing, chemical industry, commodity inspection and other fields. It can also work stably in laboratories, workshops and outdoors. Product name:HW300-MINI coating thickness gauge Features: Ultra-precision resolution 1um, FE/NFE coating measurement, automotive paint 0-2000um Small size, high accuracy Battery level indicator Auto power off function For FE/NFE Measuring range: 0-2000UM Measuring accuracy: ±(3%+1UM) Power supply:2 x 1.5V AAA batteries (shipped without batteries) Using temperature:-10 degrees Celsius 50 degrees Celsius Product size:95x40x22MM Colour:As Shown Material:ABS Package Contents: 1 * Thickness gauge 1 * English instruction manual 1 * Calibration sheet Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.