CAT III UL listed test leads are made for measuring up to 1000 Volts. These fit into the Phoenix family of clamp meters with 4mm input jacks and include insulated alligator clips. The ATL59 is a set of UL listed insulated test leads designed for use with UE's DL369, DL379 and DL389 clamp-on meters. Urea Test Instruments has over 45 years experience designing and manufacturing a broad range of award-winning, industry-leading Test and Measurement Tools. Urea Test Instruments are sold throughout North America and Canada and professionals recognize the Urea brand for quality and innovative features designed to solve real-world problems. Urea's NIST-certification laboratory is compliant with ISO17025. Urea backs its products with dedicated technical support, service and repair teams.