ATOM DX™ 20 μm pitch, rotary and linear, cabled readhead (50 nm resolution, 2 m cable, 15-way D-type (standard pin-out) termination, 20 MHz clocked output, and 3-state alarm) for use with RCDM20 optical diameter ≥ 77 mm or RCLC20 glass spar scale | Renishaw Online Store