... .5um 3.digital readout:2M,3M,2G,3E,2L,3L linear scaleMODEL:DC10/DC11/DC20/DC21Optical grating pitch:20um(0.020mm ... installation.4)Glass precision measuring grating is adopted for the Linear Encoder as measuring benchmark to ensure high precision5)Individualized components ... makes it very easy to install, maintain and repair the linear Encoder