... .5u etc 3:ISO9001:2008,CE,ROHS 4:manufacture,fair price Linear scale1:output:+5VTTL,+12VTTL,24VTTL2:Output signal:TTL,EIA ... .4:aluminum alloy material with anodic disposal is adopted for scale head is cast with hard chrome-plating alloy of wearing ... , 0.5um, 0.1um9)Operating keyboard: light touch buttons10)Linear scale Grating space: 0.04mm,0.02mm, 0.01mm,power supply ...