Coating Thickness Gage, Maximum Thickness Measured 20 mil, Minimum Thickness Measured 0 mil, Thickness Measurement Accuracy +/-(0.1 mils + 10 Percent of Reading), Display Type Analog, Testing Method Magnetic, Compatible Material Steel, Includes Soft Carrying Case, Minimum Operating Temperature -150 Degrees F, Maximum Operating Temperature 450 Degrees F, Manufacturer Warranty Length 2 yr, Batteries Included No, Battery Chemistry Not Applicable, Battery Run Time Not Applicable