Feature:  Simple operation and portable design,small size.  Small diameter probe, automatic identification of substrate type, microin-level accuracy.     Specification:  All-in-one: Split.  Suitable for used car evaluation test or factory evaluation test:  With line probe, suitable for measuring pipes/cylinders, arcs, narrow places, etc.  Measuring range: 0-1250µm.  Lower limit resolution: lµm (0.1µm below 100µm).  Zero point calibration: ± (1.5+3%H)µm.  Two-point calibration: ±[(1%~3%)H+1.5]µm.  Lower limit curvature: convex 5mm, concave 5mm.  Diameter of the lower limit area of the base: 10mm.  Lower critical thickness: 0.4mm.  Ambient temperature: 0~40°C.  Relative humidity: <85%RH.  Shutdown mode: automatic.  Power supply: two AA batteries (not included).  Dimensions: 102 x 62 x 28mm.     Package Includes:  1 x Coating Thickness Gauge (Battery not included).  1x User Manual