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

Product #: E21M004
USD Price: $180.00

Contains mercury. Dispose of according to local, state and federal regulations.

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.

  • The right probe for your application.