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、Measurement at Any Position: The external digital display ruler can be used for fixed measurement at any position, which is very convenient to use. 1 x Digital Display Ruler1 x Base3 x Bracket2 x Screw1 x User Manual  Item Type: Digital Readout LinearMaterial: Stainless Steel + Aluminum AlloyUses: IndustrialBattery: 3V CR2032 x 2 Button Battery (without Battery)Scale Unit: Metric Scale, Imperial ScaleABS Key: Relative Measurement Absolute Measurement ConversionSET 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 1/128Mm In Key: Metric Inch Conversion at Any PositionON OFF Key: Power Switch KeyZERO Button: Reset Button at Any PositionResponse Speed Of Moving Grid Sensor: 3 Meters/S