Features: 1. High accuracy optical scale; 2. Response speed: over 60 meters per second; 3. No intermediate interface is needed over 100 meters long-distance data transmission; 4. Using 5 sets of bearing, assures excellent repeatability positioning, good sliding and durability; 5. Multiple-shielding and soft metal cable protection and excellent anti-jamming and water- proof for EMI; 6. Anode process of Aluminum alloy for etching proof; 7. Anti-dust sealing is made by special plastics, with lower friction; 8. Easy installation and maintenance by special design, with good watering-proof and dust-proof; 9. The sensors adopt the glass precise computation as the measuring benchmark; Specifications: 1. Resolution:0.005mm; 0.001mm 2. Measuring Length (ML):50mm- 3000mm 3. Output signal:5V, TTL square wave, Option: RS422 4. Accuracy: ±(5+L/200) um 5. Max. Response Speed: 60 M/min.