Use electrodes and probes from Grainger to help quickly and easily test water in the lab or the field. Find ion-specific electrodes for general-purpose use and titrations. Use combination electrodes for solvents, wastewater and extreme pH testing. Submersible electrodes can be ideal for testing water with heavy metals, organics and sulfites, and gel-filled electrodes can handle very dirty water, heavy metals and organics. Find these electrodes and probes and more at Grainger!