These 74 mm long LowProfile reference electrodes are ideally used with the Screen-Printed Electrode cells and Low Volume cells. The low cost of these reference electrodes makes them ideal for any application, especially for use with non-aqueous electrochemistry. These non-aqueous reference electrodes have an Ag wire and no filling electrolyte. These electrodes are sold as a kit, containing three glass tubes with ceramic frits in one end, which slide into the PTFE cap/pin/Ag wire assembly.