Check the listing for details. TOAUTO 1um Magnet Linear Scale Digital Readout DRO Sensor 100mm-6000mm CNC Mill. Condition: New – Open box, Made in China. Listed at 106.99 USD. Magnetic Read Head Sensor 1um 2Axis 3Axis Digital Readout Display Milling Lathe Applications : Through non-contact induction, the linear motion is converted into orthogonal pulse signal output, which can accurately measure the length, acceleration and so on. Suitable for： Machineing Centers PVC Cutting Machines Wood Cutting Machines Lathes, Milling Drilling, Grinding Machines Sheet Metal Working Machines Marble Machines Welding Machines Bending Machines Electrical Discharge Machines Robotics/Material Handing Glass Working Machinery Resolution:1um/0.001mm/0.0001" Output Signal Type: TTL square wave RS422 Line Driver Output Signals: A, /A, B, /B, Z, /Z Current： Maximum 30 mA per Channel Supply Voltage: 5VDC Body Material: Aluminum Gap Between Tape and Sensor: 2mm is recommended, Max. 4mm.