1Basic Specifications: The multi function digital display ruler series is equipped with a display screen, which can be used for both horizontal and vertical purposes, with high accuracy and a resolution of 0.01mm. 2Optimized Design: The moving grid module displacement sensor adopts optimized design, has strong anti interference ability, no over speed error occurs, and the response speed is 3 meters/s. 3Hole Installation: Digital display ruler with installation hole design, back installation hole, suitable for use with various equipment and machine tools. 4Strong Magnetic Force: The back of the display screen of the digital display ruler has strong magnetic force, which can be adsorbed on iron objects. 5Measurement at Any Position: The external digital display ruler can be used for fixed measurement at any position, which is very convenient to use.