SKS Hirschmann Test Clips Accessories Test probe 608348 - SKS Hirschmann 973601101, The SKS Hirschmann MZS 1 - PRUEF test probe features a 4 mm jack connector and is rated for CAT I, making it suitable for low-voltage applications. It is red in colour and designed for secure connections during electrical measurements. Commonly used in laboratory settings, this probe ensures precise and reliable contact for testing and diagnostics. SKS Hirschmann 973601101 MZS 1 Red test probe 4mm jack CAT I 1pc