Why choose our GUILOPOER 3 Axis Digital Readout DRO? GUILOPOER brand new 3 Axis DRO Digital Readout is an instrument which can measure position of work piece when processing, The sensor uses a glass precision metrology grating as the measurement reference, characterized with high scanning frequency, quick graphic machining and low measuring error. Can be mounted on almost any surface, offering the user precise linear measurment capabilities. Functions 8 bit LED High-definition nixie tubemm/inch modeABS/INC coordinate conversionzero clearing, resetliner error compensation Linear drillingPCD functionChambering ToolconpensationMachining of oblique planeCalculator Functions center of 1/2, R arc function(RAC) vibration filtering digital filtering sleep mode divide circle evenly (PCD) 200 sets sub datum function drilling of oblique line taper measurement You will receive 2 separate packages due to the different dimensions of scales and display if you only receive one of them, the other one is maybe on the way to you. Please just wait for a while The Total Length =Travel Length+140mm. Glass precision Metrology Grating，Resolution 5um , Accuracy ±5um/ 0.0002" (at 20 deg C);Pulse signal period 20um , Travelling Speed 100m/min，8 bit LED High-definition nixie tube. Applicable for milling machine, drilling machine, grinding machine, lathes, profile projector, video measuring machine, position monitoring, coordinate measurement, X-Y-Z working table monitor, mechanical control as well as other area of linear scale and rotary encoder.