SKS Hirschmann Test Clips Accessories Safety test probe 608347 - SKS Hirschmann 972318101, The SKS Hirschmann PRUEF 2610 FT rt is a safety test probe featuring a 4 mm jack connector, suitable for CAT II 1000 V applications. This red, spring-loaded probe is designed for secure and accurate contact in electrical testing and measurement tasks. It is typically used by professionals in electronic testing environments for connecting to and probing circuits safely. SKS Hirschmann 972318101 PRUEF 2610 FT Red Safety test probe 4mm CAT II 1000V