The Easson 2 Axis Digital Readout Kit features an advanced optical measuring system, which implies that the slide carrier of the scale has a five-bearing design for optical grating linear transducer, which makes the kit a reliable system to work with. The double-seal construction offer great oil resistance along with durability. The built-in interpolator facilitates increased resolution while grating. Also, it minimized the error drifts caused by changes in room temperature. This readout kit includes two pieces of GS10 linear scale that has a high-precision etched glass for achieving highly accurate results. you can choose from the available models between 100mm and 1020mm measuring travel lengths.