Hanna Instruments HI 3221 Instruction Manual page 65

FC 911B
Plastic-body (PVDF), double junction, refillable with built-in amplifier, combination pH
electrode. Use: very high humidity.
FC 911
HI 1413B
Glass-body, single junction, flat tip, Viscolene, non-refillable, combination pH
electrode. Use: surface measurement.
HI 1413
ORP ELECTRODES
HI 3131B
Glass-body, refillable, combination platinum ORP electrode.
Use: titration.
HI 3131
"S" VERSION
HI 3230B
Plastic-body (PEI), gel-filled, combination platinum ORP electrode.
Use: general purpose.
HI 3230
"S" VERSION
HI 4430B
Plastic-body (PEI), gel-filled, combination gold ORP electrode.
Use: general purpose.
HI 4430
"S" VERSION
Consult the Hanna General Catalog for a complete and wide selection of electrodes.
12 mm
0.5"
110 mm
4.3"
12 mm
0.5"
110 mm
4.3"
12 mm
0.5"
150 mm
5.9"
12 mm
0.5"
120 mm
4.7"
12 mm
0.5"
120 mm
4.7"
65