pH Sensor for Hydrolab mulitparameter sondes

HYDROLAB pH Sensor for HL Series Sonde with Integrated Reference

Product Number: HLPHIREF

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The HYDROLAB pH sensor uses a glass bulb measuring electrode with integrated refillable reference electrode, combined into one sonde port. A user-rebuildable reference electrode extends the life of the pH sensor while minimizing costs because the measuring electrode does not necessarily need replacement when the reference electrode is depleted


  • Nutrient Monitoring
  • Source Water
  • HydroMet