Radiometer Analytical REF421 Reference Electrode (calomel reference, screw cap)

Radiometer Analytical REF421 Reference Electrode (calomel reference, screw cap)

Product Number: E21M004

Obsolete

Hazardous Materials

Contains mercury. Dispose of according to local, state and federal regulations.
Hazardous shipping. Items with this mark may be considered hazardous under some shipping conditions. If necessary, we will change your selected shipping method to accommodate these items.

The Radiometer REF421 Reference Electrode has a glass body, calomel reference system, refillable electrolyte (sat. KCl), and porous pin junction. The REF421 reference probe can be used in a variety of sample types. The REF421 is a screw cap electrode and requires an external connection cable for connection to a meter.

Applications:

  • Municipal Water
  • Primary Treatment
  • QA/QC Lab
  • Surface Water

Benefits

The right probe for your application.

To meet your analysis needs, Radiometer Analytical reference electrodes are available with a variety of reference systems and liquid junctions. There is a Radiometer electrode for every application.

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Product Life Cycle

*when applicable

Phase Out

Items with this label are at the end of their life cycle and may become obsolete in the future.

Obsolete

Items with this label are obsolete and unavailable through eCommerce.
If applicable, please view Replacement Product above or contact Hach Customer Service for further assistance.