Ohaus ST310 Plastic Refillable pH Electrode

SKU: ST310
Ohaus ST310 Plastic Refillable pH Electrode

Ohaus ST310 Plastic Refillable pH Electrode

SKU: ST310
Regular price $209.17 CAD
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Ohaus ST310 3-in-1 Plastic Refillable pH Electrode

The OHAUS Starter Series of electrodes are designed to produce exact results time and time again.  They fit perfectly in the electrode holders on OHAUS bench meters as well as electrode clips on all OHAUS portable meters.  This electrode is suitable for normal samples.


  • pH Range: 0 to 14
  • Temperature Range: 0 to 80 ºC
  • Shaft Material: Plastic
  • Internal Reference Type: Ag/AgCl
  • Refillable/Non-refillable: Refillable
  • Reference Junction Type: Ceramic pin
  • Refilling Reference Electrolyte: 3M KCl solution
  • Dimensions (Shaft): 120 x 12mm
  • Cable Length: 1m
  • Temperature Sensor: Yes
  • Connector: BNC Cinch


This delicate instrument requires proper care and maintenance to produce accurate, reliable results and to ensure a long, usable life.

Extend the life of your pH electrode in the following ways:

  1. Always keep the electrode moist when not in use by placing it in an electrode storage solution (3M KCl).
  2. DO NOT store the electrode in distilled or deionized water, as this will cause ions to leak out of the glass bulb and reference electrolyte. This will produce a slow and sluggish response and can damage the electrode. 
  3. Remove the electrode gently from the storage bottle and rinse it with distilled water before use.
  4. For long-term storage, always keep the electrode in the bottle filled with enough storage solution to cover the bulb. Replenish the bottle as needed.

Starter Series Electrodes Data Sheet
ST310 Manual

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