Coating Thickness Gauge CM-288FN Automotive Accident Tester/Professional Industrial Coating Meter (For High-Precision Measurements) The Best Way to Buy a Used Car for any dealer or consumer. Easily find previous paintwork, accident damage and bondo by physically examining the whole car in under 1 minute Measures Paint and Laquer coatings on Steel & Aluminum. Automatically recognizes the material. Thickness gauge works absolutely stably Highly Accurate - Resolution - 0.1 mils or 1 um, Accuracy Discrepancy - 1-3%, Range - 0-50mil, 0-1250um - Comes Precalibrated. Included are calibration plates and foils for Recalibration Selectable measurement units English (mil) / Metric (microns), AAA batteries (not included) Two measuring modes (single and continuous) - a function of the professional device to test cars