Feature: 1. Digital readout can clearly display data for easy reading. 2. This digital readout is a necessary processing machine product, mainly used in milling machines and lathe machines. 3. Adopts high quality material,stable performance and long service life. 4. Industrial grade grating displacement sensor, suitable for milling machine, lathe, wire cutting, etc. 5. The grating measuring system is a transmission infrared optical measuring system with an infrared wavelength of 940 nm. Specification: Item Type:Readout Scale Display Measuring Range: 0 - 3020mm Measurement Standard: Engraved Glass Grating Operating Voltage: 5V DC ± 5% Working Speed: ≤1m / S Acceleration: ≤60m / S² Reference Operating Temperature: -10 °C ≤ T ≤ 70 ° C Reference Operation Humidity: ≤90 Rh Measurement Process: Increment Signal Mode: TTL Circuit Characteristics: NPN Type Grating Measurement System: Transmission Infrared Optical Measurement System, Infrared Wavelength 940nm Scanning Frequency: ≤28 KHz Vibration Reduction: 50hz-2khz≤180m / S² Impact: 16ms, ≤600m / S² Displacement Friction Resistance: ≤ 5N. Package List: 1 x JCS900-3AE Readout Scale Display 1 Set of Mounting Accessory(Random Color) Note: 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.