Katseliidesed ulatuvad väga lihtsatest ja vastupidavatest seadmetest keerukate mõõtevahenditeni, mis on keerukad, kallid ja haprad ja neid tarnitakse sageli katsejuhtidena, mis sisaldavad tajurit, kaablit ja lõpppistikut.
Test probes range from very simple, robust devices to complex probes that are sophisticated, expensive, and fragile. A test probe is often supplied as a test lead, which includes the probe, cable and terminating connector.