ECO-WORTHY 1000mm And 250mm Travel Length Linear Scales w/ 2 Axis Digital Readout Dro Kit This kits includes 2 axis digital readout with mounting arm & 1000 mm/250 mm travel linear scale & 1 Set mounts parts and accessories for installation & 1pc user's manual. It is complete DRO kits with parts for mounting. The mill digital readout (digital readout) in GCS series is a high precision instrument that can be used on grinding machine,milling machine,boring machine and EMD to make the position detection. Voltage Range: AC 110~220V/50HZ~60HZ Application: profile projector, Microscope, Video measuring machine, Movement control, Position monitoring, Coordinate measurement, X-Y working table monitor, Mechanical control, other area of linear scale and rotary encoder. Customized scales are available. If you need customized size of scales, please place order at that customized item and tell us the sizes.