Features: Main Function: Digital coating thickness gauge is designed for measuring the non-metallic coating thickness on metal surface. Ease Of Use: Easy and quick to detect car paint thickness; rapid acquisition and accurately measure the coating thickness (Batteries not included). Automatically Shut-down: Energy-saving, this tester will automatically shut down when there is no measurement in 1 minutes. Wide Application: Widely applied to mechanical equipment evaluation, car paint detection and manufacturing industry, metal processing industry, etc. It is compact portable, user friendly and easy to carry. It can measure any metal, and it comes with instructions in English and Russian. Specifications: Color: White,Orange,Blue Material: Plastic Precision measurement: 2% RDG 0.02mm [2% RDG +- 1mil (steel and aluminum only)] Power: 2xAAA(not included) Working current: less than 10mA Minimum base: 10mm Critical base thickness: 0.5mm Display resolution: 0.02mm 1mil Working temperature: -5 ~ 40 degrees c Working humidity: 5 ~ 95% RH non-condensing Storage temperature: -20 ~ 60 degrees c Storage humidity: less than 85% RH Item Size: 10.5*6.2*4cm Weight: 70g Packing List: 1 x Thickness Gauge 1 x Set of standard sheets 1 x User Manual