Check the listing for details. TOAUTO 1μm Linear Scale DRO 2/3 Axis Digital Readout Glass Encoder Lathe Mill,US. Condition: New. Listed at 96.15 USD. High Precision 1um 2/3 Axis Digital Readout Linear Glass Scale TTL DRO Display for Milling Lathe Application : 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 80V~260V; 50~60Hz，US Plug Power consumption: 15VA Operating temperature: 0~45 degree centigrade Storage temperature: -30~70 degree centigrade Relative humidity: Less than 90% Readout allowable input signal: TTL square wave Allowable input signal frequebcy: Less than 5MHz Max resolution of digital display length: 1µm (0.001mm/0.0001") Min resolution of digital display angle :0.0001/pulse.