The Kelvin Probe F83611S053L535-MTDf (item number 1168297) is designed for precise four-wire resistance measurements. The separate current and voltage paths in F83611S053L535-MTDf support four-wire measurements in which lead and contact resistance have minimal influence on the result. Tip style 50 (Concave with drill hole stepped) has a diameter of 7 mm. For F83611S053L535-MTDf, spring force is 450 cN at a nominal travel of 1.5 mm. For F83611S053L535-MTDf, the specified continuous current is 1 A. The plunger in F83611S053L535-MTDf is made of brass and is gold-plated.