Features 1、Basic 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. 2、Optimized 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 . 3、Hole Installation: Digital display ruler with installation hole design, back installation hole, suitable for use with various equipment and machine tools. 4、Strong Magnetic Force: The back of the display screen of the digital display ruler has strong magnetic force, which can be adsorbed on iron objects. 5、Use Scenario: Digital display ruler is suitable for lathes, cylindrical grinders, milling machines, surface grinders, boring machines, planers, table saw fences and other machine tools. Specification Item Type: Digital Readout Linear Material: Stainless Steel + Aluminum Alloy Scale Unit: Metric Scale, Imperial Scale ABS Key: Relative Measurement Absolute Measurement Conversion SET Key: In the inch measurement state, each time you press this key, the resolution of the fractional part will switch between 1/3, 1/64, and 1/128 in mm Key: Metric Inch Conversion at Any Position ON OFF Key: Power Switch Key ZERO Button: Reset Button at Any Position Response Speed of Moving Grid Sensor: 3 Meters/S Specification(mm) Battery Resolution(Approx.) Accuracy(Approx.) a(Approx.) L(Approx.) Round 0-1000mm 3V CR2032 x 1 Button Battery 0.01mm/0.0005in ±0.2mm/0.008in 1124mm/44.3in 1148mm/45.2in Square 0-1000mm 3V CR2032 x 2 Button Batteries 0.01mm/0.0005in ±0.2mm/0.008in 1124mm/44.3in 1148mm/45.2in Package List 1 x Digital Display Ruler 1 x Base 3 x Bracket 2 x Screw 1 x Storage Bag 1 x User Manual