The Kelvin Probe F81012B060G230S1 (item number 1167467) is designed for precise four-wire resistance measurements. The separate current and voltage paths in F81012B060G230S1 support four-wire measurements in which lead and contact resistance have minimal influence on the result. Continuous current ratings for the outer and inner contacts are 3 A / 0.8 A. The impedance specified for F81012B060G230S1 is 50 Ω. The specified frequency range of F81012B060G230S1 extends up to 1.2 GHz. F81012B060G230S1 combines a pitch of 2.54 mm / 100 mil with tip style 05 (Concave stepped) and a tip diameter of 2.5 mm.