ATOM DX™ 20 μm pitch, rotary, cabled readhead (0.5 μm resolution, 2 m cable, 15-way D-type (alternative pin-out) termination, 4 MHz clocked output, and 3-state alarm) for use with RCDM20 optical diameter ≥ 31.4 mm to < 42.4 mm | Renishaw Online Store