Specifications: Digital LCD display. Compact design and easy to carry. Zero, one-point and two-point calibrating. Auto power off mode designed to conserve battery life. Comes with iron base and non-iron (aluminium) base. Portable, user friendly and easy to carry even in pocket. It can measure the thickness of non-metal coatings on metal surface. Provides single, continuous and difference measurement mode with metric/imperial conversion. This unit is perfect for manufacturing company, metal machinery industry, chemical industry, and commodity inspection especially in automobile trading. Item Name: Thickness Gauge Target Measure: Non-metal Coating Thickness on the Metal Surface Measuring Range: 0mm - 1.80mm/0mil - 71.0mil Nonmetal Coating on Metal Surface Accuracy: ±0.03mm Power Supply: 2 x 1.5V AAA Battery(Not Included) Minimum Base Diameter: 50mm Critical Base Thickness: 0.5mm Display Resolution: 0.01mm/1mil Operating Temperature: 0℃ - 40℃ Operating Humidity: 10%RH - 95%RH Size: 61.98mm x 30.57mm x 104.99mm/2.11" x 1.20" x 4.13" (Approx.) Notes: Due to differences in lighting and screen settings, the color of the project may be slightly different from the picture. Due to different manual measurements, allow for slight size differences. Package Included: 1 x Thickness Gauge(Battery Not Included) 6 x Standard Pieces 1 x User Manual