2818-2823 Conductivity-Resistivity Electrodes


Signet Conductivity/Resistivity electrodes are designed to provide versatile installation and accurate sensing across a very broad dynamic range. These electrodes are built with a controlled surface finish to ensure accuracy and repeatability. The standard electrode is constructed 316 SS or Titanium, but there are other materials available for maximum chemical compatibility.

Reversible threads or sanitary flanges allow for maximum installation versatility. Sanitary flange versions are available with surface quality finish of less than RA 25 and with an optional NIST Traceability Certificate to meet USP requirements. Coupled with Signet patented measuring circuitry, a three decade measurement range is achieved without the need for troublesome electrode platinization. A platinum RTD (PT1000) located within the electrode allows optimal temperature sensing.

Product Overview

Fields of Application:

  • Pure Water Treatment: Reverse Osmosis, Deionization, Distillation
  • Boiler condensate
  • Semiconductor Water Production
  • Rinse Water Monitoring and Control
  • Chemical Concentrations
  • Cleaner and Degreaser Concentrations
  • TDS (total dissolved solids)
  • Salinity
  • USP Purified Water
  • WFI Water Production
  • Ultra Pure Water


  • In-line or submersible mounting
  • NIST traceable certified cells ±1% meet USP requirements
  • Standard process connections
  • ¾" NPT Polypro
  • Tri-clamp 1 -1 1/2", 2"
  • ¾ in. NPT SS on 10 and 20 cell
  • Optional 1/2" NPT 316 SS
  • 316 SS or Titanium standard electrode
  • Alternative electrode materials available
  • Hastelloy-C
  • Monel
  • Titanium


  • RoHS compliant
  • China RoHS


Compatible Products