Coating Thickness Gage, Maximum Thickness Measured 40 mil, Minimum Thickness Measured 0.5 mil, Thickness Measurement Accuracy +/-0.1 mil + 3 Percent, Calibration Certificate Type NIST, Display Type Digital, Number of Records Stored 1,000, Testing Method Ultrasonic, Compatible Material Concrete, Plastic, Wood, Includes PosiSoft Software, Precision Plastic Shims, Protective Lens Shield, Protective Rubber Holster, Soft Carrying Case, USB Cable, Wrist Strap, Manufacturer Warranty Length 2 yr