ATOM DX™ 40 μm pitch, rotary, cabled readhead (5 nm resolution, 3 m cable, 15-way D-type (alternative pin-out) termination, 1 MHz clocked output, and 3-state alarm) for use with RCDM40 optical diameter ≥ 19.7 mm to < 30.6 mm | Renishaw Online Store