ATOM DX™ 20 μm pitch, rotary, cabled readhead (40 nm resolution, 0.2 m cable, 15-way D-type (alternative pin-out) termination, 20 MHz clocked output, and 3-state alarm) for use with RCDM20 optical diameter ≥ 42.4 mm to < 77 mm | Renishaw Online Store