The TP175E is a test probe featuring a patented TwistGuard extendable tip sheath designed to meet modern electrical safety requirements. By twisting the probe body, users can adjust the exposed tip length, and the probe automatically shows the correct category rating for the tip being used. It is rated for CAT III 1000 V, CAT IV 600 V, and CAT II 1000 V with a maximum current of 10 A. The probe includes removable 4 mm lantern tips for versatility and is compatible with instruments accepting standard 4 mm shrouded banana plugs. This design provides flexibility for various measurements while enhancing user safety by reducing tip exposure.