Hanna Instruments HI 98180 - Manual (Page 69)

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FC 911B
Plastic-body (
PVDF), double junction, refillable with built-in amplifier, combination pH
electrode. Use: very high humidity.
HI 1413B
Glass-body, single junction, flat tip, Viscolene, non-refillable, combination
pH
electrode. Use: surface measurement.
ORP ELECTRODES
HI 3131B
Glass-body, refillable, combination platinum
ORP electrode.
Use: titration.
HI 3230B
Plastic-body (
PEI), gel-filled, combination platinum ORP electrode.
Use: general purpose.
HI 4430B
Plastic-body (
PEI), gel-filled, combination gold ORP electrode.
Use: general purpose.
Consult the Hanna General Catalog for a complete and wide selection of electrodes.