Function: 1. RECORD DATA VARIETY: The coating thickness gauge can simultaneously record the average value, maximum value, minimum value and difference value, and supports up to 50 data for statistical purposes , making the measured numerical data more accurate and convenient. If the auto power off function is enabled, the device will automatically power off in 3 minutes to save battery power without any operation 2. THICKNESS MEASUREMENT: Paint thickness gauges are used to measure the thickness of non-conductive coatings on metal surfaces, as well as the thickness of non-ferromagnetic coatings on ferromagnetic metals (such as iron, nickel, cobalt, etc. ), such as paint thickness on automotive surfaces, coating thickness of metal parts, etc. 3. THREE MEASURING UNITS: This coating thickness gauge has three units um, mm, mils , can be cut with a push of a button, can quickly and accurately measure the thickness of plating or cladding on almost all metal surfaces, and can be used to determine the average paint thickness on a car body 4. PORTABLE AND EASY TO READ: The high-definition paint meter display sets the background light which can easily read data anywhere, anti-skid and comfortable to hold, only 4.72 inches long, can be placed anywhere, easy to carry with you 5. WIDE RANGE OF APPLICATIONS: Widely used in auto factories, industrial production, production equipment, machining, etc. for hobbyists and professionals in production, workshops, paint shops and the automotive industry Specification: Item Type: Paint Coating Thickness Gauge Material: ABS Resolution: 0.01 mm, 1 mil Measuring range: 0-2000UM Measurement Accuracy: (3% 1UM) Resolution: 0um 99.9um (0.1um) Minimal convex arc: Approx. 5 mm / 0.2 inch Minimum concave arc: Approx. 25mm / 0.98 inch Minimum measurement area: diameter: approx. 20mm / 0.79in Minimum substrate thickness: Approx. 0.2mm/0.01in Maximum measuring speed: 2 readings per second Package List: 1 x paint coating thickness gauge 6 x standard foil 1 x backing 1 x User Manual