Characterized with high scanning frequency, quick graphic machining, low measuring error and powerful functions. You can modify its parameter to make it applicable for various machine tools. Robust casing, high reliability and durability switch design. Multiple function, easy to install and operate, ideal for mechanical process. Applicable for lathe, milling machine, grinder, boring machine, spark tester, etc. This Digital Readout is a multifunctional digital display gauge. By modifying its relevant parameters, it can be used in various machine tools such as lathe, milling machine, grinder, boring machine, spark tester, etc. Grating Measurement System: Infrared optical measurement system, infrared wavelength 940nm. Operating Environment: -1070? , ? 90RH. DRO Size: 29.5208cm / 11.67.93.1in. 1 Set of Installation Accessories. This product doesn’t include the linear scale. 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. We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. Post a message again because sometimes our message system may block some emails. If you are satisfied with our service, pls. Our aim is to provide Level Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy. We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.