Hanna Instruments HI 4211 - Manual (Page 73)

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ORP ELECTRODES
HI 3131B
Glass-body, refillable, combination platinum ORP electrode.
Use: titration.
HI 3230B
Plastic-body (Ultem
® ), gel-filled, combination platinum ORP electrode.
Use: general purpose.
HI 4430B
Plastic-body (Ultem
® ), gel-filled, combination gold ORP electrode.
Use: general purpose.
Consult the Hanna General Catalog for more electrodes with screw-type or BNC connectors.
Kynar ® is registered Trademark of “Pennwalt Corp.”
Ultem ® is registered Trademark of “General Electric Co.”