CAT III UL listed test leads are made for measuring up to 1000 Volts. These fit into industry-standard multimeters with 4mm input jacks and include insulated alligator clips. For Use With: DL369 Digital Clamp Meter, DL389 True RMS Digital Clamp Meter, DL49B Digital Clamp-On Multimeter, DL419 True RMS Clamp Meter, DL429 True RMS Wireless HVAC Clamp, DM393 True RMS Digital Multimeter, DMEG3 Digital Insulation Resistance Tester, IRT3 Analog Insulation Resistance Tester, UTL260 Digital Clamp Meter, UTL33T Digital Multimeter