TwistGuard Test Probe With 4 MM Adapter, Voltage Rating: 1000 V, Amperage Rating: 10 AMP, Diameter: Tip: 2 MM, Color: Red And Black Insulator, UL Listed, Conforms To EN61010-031, CAT II 1000 V, CAT III 1000 V, CAT IV 600 V Rated, For Use With The TL22X Series, TL238 And TL27 Test Leads And Multimeters