Features: Basic Functions: it can measure the thickness of the non-magnetic coating on the magnetic metal substrate, and the thickness of the non-metallic coating on the non-magnetic metal substrate. Smart Gauge: automatically identifying non-magnetic and magnetic metal substrate. 3 Measurement Modes Switchable: Single measurement(SNG), continuous measurement(CTN) and differential measurement(DIF) available, short press the MODE button to switch. Calibration Operation: including zero-point calibration, offset calibration and basic calibration. Metric and Imperial Measuring Units: short press the UNIT button to switch among m(metric), mil(imperial), and mm(metric) in turn. More Features: LCD display with backlight, screen flip, and automatic shutdown(1 minutes) function. Wide Applications: it is widely used in the inspection field of automobile manufacturing, metal processing industry, chemical industry, commodity inspection, etc. Specifications: Material: ABS Unit: m, mil, mm Measurement Range: 0~1800m/70.8mil/1.8mm Resolution: (0.1m(150m, (3%H+1m) Minimum Diameter of Magnetic Substrate: 12mm Minimum Thickness of Magnetic Substrate: 0.5mm Minimum Curvature Radius of Convex Magnetic Substrate: 2mm Minimum Curvature Radius of Concave Magnetic Substrate: 11mm Minimum Diameter of Non-magnetic Substrate: 50mm Minimum Thickness of Non-magnetic Substrate: 0.5mm Operating Environment: -20~40, 10~95%RH Power Supply: 2 * 1.5V AAA battery (NOT included) Item Size: 121.5 * 62 * 27mm / 4.78 * 2.44 * 1.06in Item Weight: 176g / 6.21oz Package Weight: 283g / 9.98oz Package Size: 18 * 12.5 * 5.5cm / 7.09 * 4.92 * 2.17in Packing List: 1 * Thickness Gauge 1 * Lanyard 1 * Pouch 2 * Calibration Substrates 5 * Calibration Coating Film 1 * Manual (English)