The PEc consists of a PEEK body containing screw and piston with contact. The electrode itself is polyethylene tip profiled with paste. The graphite paste is delivered as a standard electrode. Standard connection is with a 2 mm banana plug. Paste electrode (PEc) is designed for measurements with TC4, TC5 and TC6 glass cell. PEc is used for measurement of cyclic voltammetry and stripping voltammetry. The tip with paste is exchangeable.