Coating Thickness Gage, Maximum Thickness Measured 8 mil, Minimum Thickness Measured 0 mil, Thickness Measurement Accuracy +/-0.04 mil up to 0.8 mil; +/-5 Percent Over 0.8 mil, 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