1UM Magnetic Scale Digital Readout 3Axis 2Axis DRO Display fo CNC Milling Lathe (2) Saving the drawing function,the DRO allows to save the drawings into the system which makes the machining to be much more convenient. 13)Preview Drawing. Input Signal:5VTTL/RS422. 7)Digital Filtering Function. byJuly 3, 2026Last Updated on: July 4, 2026