Electrically: All PR‑23 sensors with the same configuration are interchangeable. The PR‑23 sensors are not interchangeable with the PR‑01 and PR‑03 range sensors. PR‑23 sensors are not compatible with the PR‑01 / PR‑03 indicating transmitter IT‑R.
Mechanically: The sanitary process refractometer PR‑23‑AC‑62‑HSS fits the same 2.5 in sanitary process connection as the sanitary refractometer PR‑03‑A62‑HSS.