Specifications: -Axis Digital Readout: 1. Measuring travel: 0-3020mm. 2. Accuracy class: ± 1um. 3. Measurement standards: engraved glass grating. 4. Operating voltage: 5V ± 5% DC. 5. Working speed: ≤1m / S (1um). 6. Acceleration: ≤ 60m / s². 7. Reference Operating Humidity: ≤ 90RH. 8. Grating pitch: 20um (0.020mm). 9. Measurement procedure: Incremental. 10. Signal mode: TTL. 11. Circuit characteristics: NPN. 12. Grating measurement system: transmission infrared optical measurement system, infrared wavelength 940nm. 13. Scanning frequency: ≤28kHz. 14. Anti-vibration: 50Hz-2KHz, ≤ 180m / s ². 15. Impact: 16ms, ≤ 600m / s ². 16. Displacement frictional resistance: ≤ 5N. 17. Protection class: IP53 / IP64. 18. Signal electrical connection: independent adapter cable (2.5M / 3M / 4M / 5M, ≤ 100M, can be connected to install the block) Note: The above parameters are measured in the ideal environment. There may be some differences in practical application. -TTL Linear Scale: 1.Physical length is differnt from the travel length 50/100,150,200,250,300,350,400,450,500, 550,600,650,700,750,800,850,900,950,1000mm 5um. 2.High Precision linear scale. 3.Resolution: 5um (0.005mm) 0.0002”. 4.Signal: TTL square /wave EIA-442. 5. Grating pitch: 0.02mm (50LP/min). 6. Accuracy: ±0.005 mm or 0.0002" (at 20 deg C). 7. Reference marks at interval of 50mm. 8. Response Speed: 60m/min or 40ins/sec. Note: Buyers may choose any scale measuring length under 1000mm at this price.In fact,The scale can be made from 0-3000mm.Scale length above refers to the real travel of the linear scale. Actual physical length is 141mm longer than travel. One inch equuals to 25.4mm. Features: -The sliding part adopts the five-bearing system which has been proved to be the most reliable and durable. The main grating adopts 90-degree assembly, which is more accurate and accurate. -The repeatability of the measurement is more stable. -The signal line adopts multi-layer isolation steel and metal soft shell protection, waterproof and anti-interference fine. -Ruler body with aluminum die-casting, hard chrome plating, corrosion-resistant. -Dust bar with special plastic, corrosion resistance, scratch resistance, friction resistance. -Parts individual, installation, maintenance, easy maintenance, waterproof, dust-proof good, long service life. -The sensor uses a glass precision metrology grating as the measurement reference. -Multi-function, easy to operate, reliable and durable, so that the necessary processing of mechanical products. Package Included: -Axis Digital Readout (2AE / 3AE). 1 x Axis Digital Readout. 1 x Set of brackets. 1 x Cable. 1 x User manual. or (depends on your choice). -TTL Linear Scale (50-1000mm). 1 x Linear Scale. 1 x L plate. 1 x Bracket. 1 x bag of Screw