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. With this upgrade pack, existing entry level racks (03939499) can be upgraded to standard versions. Features include the ability to store up to 6 ports.