Product Number: E21M005
The Radiometer REF451 Reference Electrode has a glass body, calomel reference system, refillable electrolyte (sat. KCl in inner reservoir), double-junction, and porous pin junctions. The REF451 reference probe is recommended for measurements in challenging samples. The REF451 is a screw cap electrode and requires an external connection cable for connection to a meter.
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.
*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.