The Rosemount Hx338+ pH Sensor provides biotechnology and pharmaceutical processes with unique Tri‑Triple reference technology. Three separate peripheral liquid junctions make contact with the solution, plus two inner junctions protect the reference. This design eliminates flow sensitivity, maintains a steady reference signal, and fights poisoning ions (sulfides, proteins, sugars) even after numerous sterilization cycles.

Also excellent for chemical reactions or food processing. Can be used with insertion or retractable mounting assemblies with PG 13.5 sensor connection for large‑scale batch processes with steam‑in‑place sterilization. For smaller batches, can be threaded directly into top plate and autoclaved. 12 mm diameter sensor offered in five lengths. Single‑pole S7 connector for quick disconnect; VP8 cable compatible.

Wetted materials: glass, EPDM. Maximum pressure 87 psig (6 bar). Provides fast, stable readings.