ATOM DX™ 40 μm pitch, rotary, cabled readhead (0.5 μm resolution, 0.2 m cable, 15-way D-type (alternative pin-out) termination, 20 MHz clocked output, and line driven alarm) for use with RCDM40 optical diameter ≥ 19.7 mm to < 30.6 mm | Renishaw Online Store