The HR-MP is a passive changer rack that enables the fast interchange of probe modules or styli configurations during measuring cycles, guided directly by the CMM measuring software. The HR-MP rack is designed to store probe modules safely and securely, providing them with protection from airborne contamination. The rack is available with 3 or 6 ports and in 2 different heights of 90 mm and 150 mm.

The safety pin is used as a spare part for existing 3-port probe modules on a HR-MP rack.