Multisensor coordinate measuring machines use a combination of several of the sensors described above. The properties of these sensors usually depend on their various primary applications (Fig. 27). Regarding applications, their distinguishing characteristics include the size of the object features they can probe, the type of object features they can probe (edge, surface), and their suitability for rapidly acquiring large numbers of measured points (scanning). In order to perform complex measuring jobs, it is usually necessary to ause several different sensors for a single measuring run.