Coating Thickness Gage, Minimum Thickness Measured 0 mil, Thickness Measurement Accuracy +/-1 micron Up to 20 micron; +/-5 Percent Over 20 micron, Calibration Certificate Type NIST, Display Type Analog, Compatible Material Steel, Includes Soft Carrying Case, Wrist Strap, Manufacturer Warranty Length 2 yr, Batteries Included No, Battery Chemistry Not Applicable, Battery Run Time Not Applicable, Battery Size Not Applicable, Battery Voltage Not Applicable