ST230 Starter pH ElectrodeOHAUS Precision Powers the Starter Electrodes The ST230 Starter pH electrode is most suited to creams, sauces, fruit juices or similar products as it is easy to clean and resistant to clogging. 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,