The Megger 242006 series duplex test lead with Kelvin clip is for use with Megger DLRO10HD, DLRO10, DLRO10X, 247000, 247001, 247002, 247100, 247101, and BT51 digital low-resistance ohmmeters. This duplex test lead measure both current and resistance when taking four-wire resistance measurements, which are more accurate than two-wire resistance measurements and allow low resistance values to be detected. The lead has a maximum test current input of 10 amp. Duplex Test Leads 30 ft (9 m) 10 A 1.5 in (4 cm) Kelvin Clips