The thickness gauge is used to measure the thickness of metal plating and coatings, such as paint/enamel/chrome on steel, paint and anodized coating on aluminum/copper. Automatic detection of substrate properties. The inst ent is used to non-destructively measure the thickness of coatings and paints. It is an essential equipment for material surface 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. Ultra-precision resolution 1um, FE/NFE coating measurement, automotive paint 0-2000um Small size, high accuracy Battery power indicator Auto power off function For FE/NFE Measuring range: 0-2000UM Measuring accuracy: ±(3%+1UM) Power supply: 2 1.5V AAA batteries (without batteries) Operating temperature: -10 degrees Celsius 50 degrees Celsius The actual product may have slight color difference or difference, which will not affect the use Colour:White/Black Material:ABS Package Contents: 1x Thickness Gauge 6x Calibration Sheets 1x Aluminum Plate Only the above package content, other products are not included. Note: Light reflection 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.