1um High Precision Linear Scale 3pc + 3Axis DRO Digital Readout Glass Scales Kit. 1µm 3Axis Digital Readout DRO + 3pc Linear Scale Kit Mill Lathe High Precision. This kind of DRO is commonly fitted to machines, especially for metal working – lathes, cylindrical grinders, milling machines, surface grinders, boring mills and other machine tools – to allow the operator to work faster and with greater accuracy. Supply Voltage range : AC 80V260V; 5060Hz. UK, US, EU Plug available. Operating temperature: 045 degree centigrade. Storage temperature: -3070 degree centigrade. Relative humidity: Less than 90%. Readout allowable input signal: TTL square wave. Allowable input signal frequebcy: Less than 5M Hz. Max resolution of digital display length. 1µm (0.001mm/0.0001). Min resolution of digital display angle :0.0001/pulse. Digital Readout Dimensions:29517065mm (11.6″6.7″2.56). Linear Scale Interface: DB9(RS232). Display Advantage: Having a good capacity of resisting disturbance, durable keyboard, easy to change. SDM 200 sets memory, power-off memory for 10years, circumference drilling, oblique line drilling, 1/2 centering. The simple R function. Chambering (applicable to: Milling machine, Boring machine). Tool conpensation (for lathe). Machining of oblique plane. Also a calculator is equipped for more convenient usage. (1) Digital display to. So to accomplish a perfect project. To offer excellent long-distance viewing. (4) Digital readout kit can avoid wasting weeks to check machine precision. (6) 1pc digital readout(2Axis/3Axis) with scales(upon your options). 1? M (0.0001) resolution. 1pc 3Axis Digital Readout. 3pcs TTL Linear Glass scale. (Please leave us message for the travel length you need). 1 set mounting accessories. 1pc Engligh user manual. Q1 : are the length 100, 150, 200…. 1000mm travel length or total? Answer : all are travel length Q2 : if i need a scale like 255mm, can you offer it? Answer : 250mm is enough, its measuring range can reach up to 270mm, so you can use if you need to measure 255mm. Q3 : Can i cut the scales by myself? Answer : Technically NO, it maybe unavailable after cutting. Answer : Please must check the scale pin definition (1,2,3,4,5,6,7,8,9), which is very important!! Q5: How can i change the 5? M to 1? M display? Q6: How can i change the Mill mode to Lathe or EDM mode?