Features: The reading head of this sensor uses ball bearing positioning and orientation for small friction, high sensitivity and long service life. The sensor uses precision metrology grating as measuring device, high measurement precision. It is practical for refinement of machine tools which have lost precision; using grating digital display machine tool can greatly improve machining accuracy and production efficiency. The sensor has sealed structure, reliable performance, easy installation, and is unmatched by any other digital display system. It can be used for linear digital display of all kinds of small and middle machine tools and other precision measuring, to achieve accurate measurement and positioning. Specification: Model: JCS900-3AE Readout: Voltage: 110-240V Plug: EU plug Measuring Travel: 0-3020mm Measuring Standard: Grooved glass optical grating Working Voltage: 5V DC ±5& Working Speed: ≤1m/S(1um) Accelerated Speed: ≤60m/s² Referential Operating Temperature: -10℃≤70℃ Referential Operating Humidity; ≤90 RH Test Process: Increment Signal Mode: TTL Circuit Type: NPN Optical Grating Measuring System: Transmission-type infrared optical measurement system, infrared wavelength is 940 nanometers Scanning Frequency: ≤28kHz Vibration Reduction: 50hz-2khz≤180m/s² Impact: 16ms, ≤600m/s² Displacement Friction Resistance: ≤5N Linear Scale: Measuring Range: 0mm~100mm; 0mm~500mm; 0mm~800mm Accuracy: ±5um Resolution: 5um Weight: 6162g / 217.4oz (approx.) Note: 1, Please kindly make a note if you need any plug adapter. 2, Due to different batches, the color of accessories may differ from picture, please take the real ones as standard. 3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package list: 1 * Digital Readout 3 * Linear Scales (100mm, 500mm, 800mm) 1 set * L-shape Connection Plates 1 * Protective Cover 1 * Holder 1 * Power Cord 1 set * Screw Accessories .