To determine the switching characteristics of electronic switches and switching elements, the electrical signal of the assembly under test is integrated into the testControl electronics. The testXpert® software assigns the electrical switching contacts synchronously to the relevant load and deformation data. In a hysteresis test (switching on and off) the mechanical load and/or the torque and the electrical switching points are determined and displayed. For torque measurement the testing machine is additionally equipped with a torsion drive and sensors.