Features: The measured values can also be converted- between inches and millimeters. Digital LCD screen, can read quickly horizontally and vertically. Applicable to manual router and router table. This magnetic self-supporting is convenient for foot-vertical measurement. Using free standing magnetic feet, vertical measurement is more accurate. Self-supporting, the cutter depth can be set on the router planer table, and the back can be adjusted for height. Easy to adjust distance to achieve height measurement, multi-function plunger-hole / slot depth measurement. Specifications: Material: plastic Size: approx 15.2x10cm/6x4in Range: 0-80mm Resolution: 0.01mm Hole depth: 0-50mm Power supply: 1x3v batteryc Package Includes: 1x Digital Height Gauge note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.