Three techniques, namely cyclic voltammetry, cyclic resistometry, and cyclic gramometry (EQCM) have been used simultaneously to investigate the nature of the anion/cation inclusion/exclusion process occurring at a polypyrrole chloride modified electrode. This online/real time study confirms that the redox reaction is a dynamic process that results in time dependent signals when a polymeric sensor is utilized. Although the use of cyclic voltammetry does not show distinct cation/anion responses clearly the other two techniques used enable distinct cation and anion responses to be observed. The collected data were saved into several files and introduced to a powerful computer as test and training files. Later the output prediction process was carried out.