The REPP-R is a potentiometer jointmeter transducer for remote monitoring of traction or compression movement such as discontinuities of rock mass or blocks, construction joints in concrete, and expansion joints of steel structures. It has a rugged stainless steel housing. The ball joints allow for a degree of shearing motion. REPP-R is available in three different ranges: 25, 50 and 100 mm with respectively 207.5, 245 and 320 m base lengths at mid-range.