STORP2 Starter ORP ElectrodeOHAUS Precision Powers the Starter Electrodes The STORP2 Starter ORP electrode is resistant to high temperatures and organic solvents. Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and time again. The Starter Series includes pH, reference, oxidation reduction potential (ORP), conductivity, dissolved oxygen (DO), and temperature electrodes that can be used