An automated device for voltammetric measurements at a prescribed set of constant temperatures was put together in our institute. It allows one to take steady-state current-potential curves in the potentiostatic or galvanostatic mode, to do cyclic voltammetry or coulometry at constant potential or to measure the potential-time dependence at a constant current. A special holder for the solid electrolyte was constructed. Voltammetric measurements on yttrium stabilized zirconia and of the new oxygen ion conductor BICUVOX.10 are presented as examples.