ATOM DX™ 20 μm pitch, rotary, cabled readhead (10 nm resolution, 0.2 m cable, 15-way D-type (standard pin-out) termination, 40 MHz clocked output, and line driven alarm) for use with RCDM20 optical diameter ≥ 31.4 mm to < 42.4 mm | Renishaw Online Store