A device for the measurement of electrochemical parameters was designed and built using the NI USB 6250 card and the LabView 2010 software.The implemented technique, Electrochemical Impedance Spectroscopy (EIS), requires the measurement of the impedance in a wide scan of frequency, as well as the generation of its corresponding Nyquist diagram.The developed equipment, allows to recognize the type of interfaces in the layers between metals and electrolytes in order to measure corrosion parameters such as the electrical resistance of the layers, together with their capacitance and the physical model of the interface.