3-port SP25M rack with 500 mm wide rack support rail (RSR).  This bundle provides automated changing and covered storage for up to three SP25M sensors.  The rack uses a passive system, driven by the motion of the CMM and without additional motors or cables, to lock and unlock the probe head autojoint when changing components. TSR is part of a modular rack system which includes stylus storage racks (SSR), scanning module storage racks (MSR) and a range of different length rack support rails (RSR).  The image shows a 5-port autojoint rack (TSR-5, left) and 3-port SP25M rack (MSR-3, right).  The TSR-5 is not included in this bundle.