Digital Potentiometer, Model 118 is a precision instrument for potentiometric measurements. Results are displayed in milli volts on a direct digital readout by 31½ digit LED dispaly. It is supplied with a set of 4 electrodes viz. Reference, Platinum, silver & Glass. This is useful for Potentiometeric, ORP and Acid Base Titrations in Chemistry Labs, Pharmaceutical Industries, Colleges and University Labs etc