Lathe Mill DRO Scale Sino KA500 70 120 170 220 270 320 370 420 mm Slim Scale 0.005mm KA-500 Small Thin Linear Encoder Ruler Package includes -1 piece KA500 linear scale -1 piece scale cover -1 piece L mouting bracket KA-500 parameter Available Measrus Length: 70mm-520mm Cross Section: 18mm X 20mm Accuracy: +/- 3, 5, 10 (20 degree, 680 F 1000mm) Max of Measuring speed: 60m/min Reference point: one unit per 50mm Protection level: IP55 Resolution: 1um/ 5um(0.001mm/0.005mm) Output signal: TTL / EIA-422-A (option) Cable standard: 3 meters Connetor: 9 Pins