The shear test apparatus (art. no. 08.68) measures the shear stress of an undisturbed soil sample. During the measurement soil water matrix, compression stress and vertical displacement are simultaneously measured. The shear test apparatus is operating computer controlled using multifunctional software for executing measurement protocols and visualised data presentation. The samples are taken in a soil sample ring Ø 103 x 100 mm, height 30 mm, contents 235 cc.