The Radiometer REF921 Reference Electrode has a glass body, calomel reference system, refillable electrolyte (1 M LiCl), and porous pin junctions. The REF921 reference probe is recommended for measurements in non-aqueous media. The REF921 is a screw cap electrode and requires an external connection cable for connection to a meter
| What’s included? | Includes: Radiometer Analytical REF921 reference electrode with Certificate of Conformity. |

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