400mm Measuring Range Milling Lathe Digital Readout Encoder Grating Electronic Ruler Linear Scale, 400mm1. The high linear scales is designed, high , stable and accurate. 2. The signal line adopts multi layer isolation steel and metal soft shell protection, waterproof and anti interference fine. 3. Easy to install and maintain, waterproof, dust proof good, long service life. 4. Widely used, high stabilization, capacity of resisting disturbance well. 5. Suitable for JCS900 2AE JCS900 3AE data display instrument. 6. Material: metal 7. Accuracy: + 5um 8.