Features: 1.The thickness gauge with LCD display has clear numerical display and the test results are clear at a glance. 2.Two units are provided, mm / mil. The measurement range is 0.0 to 2.0mm or 0 to 80 mils. 3.Automatic calibration and data retention functions provide greater convenience for measurement. 4.Mini size, easy to hold in one hand, two simple big buttons, easy to operate and use. 5.Powered by a 3V button battery (included), CR2032 or equivalent power supply. (Remove the battery insulation sheet before use) 6.Mainly used for non-destructive testing of the thickness of automotive paint. Specification: Item Type: Car Paint Gauge Material: Plastic Measuring Range: 0.0mm to 2.0mm, 0mil to 80mil Accuracy: 2% RDG 0.1mm, or 2% RDG 4mil Note: Accuracy is guaranteed at the operating temperature of 23 and relative humidity of not more than 75%. Resolution: 0.1mm/1mil Power Supply: 1 x 3V button cell, CR2032 or equivalent (Battery Included) Operating Environment: Temperature: 0 to 40 Relative Humidity: < 80% Temperature Coefficient: 0.05x (2% RDG 0.01mm, or 2% RGD 4mil) / (< 18 or >28 ) Storage Temperature: -10 to 50 Storage Relative Humidity:< 80% How to Use: - Probe:Before measurement, place the tester with its probe firmly against target surface; - "TEST" button; - Press "TEST" button to turn on the tester. Press and hold down this button for about 1 second to turn off the tester; - Press "TEST" button to delete the reading on the display,the display will show "- -"; - "UNIT" button; Press this "UNIT" button to select desired unit: mm or mil;