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pH and ORP Electrodes

Use with any meter with a BNC connector

  Each 12 mm electrode includes a FREE electrode saver bottle to extend electrode life
  Use ORP electrodes with meters that read mV to take REDOX readings

Choose a single junction electrode for field, clean water, and general purpose applications. Choose a double junction electrode for most applications, including dirty water, heavy metals and organics applications.

All electrodes have a BNC connector, and are 12 mm dia with a 3 ft cable (except submersible electrode, which is 25 mm dia with a 10 ft cable). We offer many other pH and ORP electrodes for specialty applications; contact us for more information.

IMPORTANT: To take pH readings with Automatic Temperature Compensation (ATC), also order a temperature probe separately below.


See how to properly maintain your pH electrodes

Use with all OAKTON pH meters except pH Wand and pH/CON 10


pH Electrodes
Model # Features
WD-35801-00 Most economical view picture
WD-35805-01 Use for dirty water/heavy metals view picture
WD-35805-04 Use for lab grade applications view picture
WD-35805-06 Wider range for high sodium/high pH applications view picture
WD-35805-10 Calomel reference; best for organics, proteins view picture
WD-35805-09 Flushable PTFE junction quickly clears clogs view picture
WD-35805-18 Spear tip; test gels and semisolids view picture
WD-35805-24 Submersible, 25 mm dia, includes 10-ft cable view picture

ORP Electrodes
Model # Features
WD-35805-13 For REDOX readings, platinum band sensor view picture
WD-35805-27 For REDOX readings, gold disk sensor, for use with cyanide view picture
Model # Description Suggested List Price Qty  
WD-35801-00 pH electrode, single-junction, epoxy body, sealed, economical $49.00
WD-35641-51 pH electrode, double-junction, epoxy body, sealed, polygel $99.25
WD-35805-01 pH electrode, double-junction, epoxy body, sealed $88.50
WD-35805-04 Laboratory pH electrode, double-junction, glass body, refillable $151.20
WD-35805-06 Wide range pH electrode, double-junction, epoxy body, sealed $88.50
WD-35805-09 Flushable PTFE junction pH electrode, double-junction, glass body, refillable $248.40
WD-35805-13 ORP electrode, single-junction, epoxy body, sealed, economical $92.65
WD-35805-15 ORP electrode, epoxy body, double-junction $152.20
WD-35805-18 Spear tip pH electrode, double-junction, glass body, sealed $158.40
WD-35805-24 Submersible pH electrode, double-junction, ABS plastic body, refillable $166.70
WD-35805-27 ORP electrode, double-junction, epoxy body, sealed, Gold disk sensor for ozone applications $231.90
WD-35805-10 pH electrode with Calomel reference, single-junction, epoxy body, sealed $72.00
WD-35805-14 ORP electrode, epoxy body, single-junction, submersible $130.50
WD-35649-50 ORP electrode, single-junction, epoxy body, sealed, polygel $127.00
WD-35649-51 ORP electrode, double-junction, epoxy body, sealed, polygel $144.00
WD-35805-08 pH electrode, double-junction, glass body, refillable, amber glass for high sodium / high pH $169.80
Accessories
WD-35613-05 Acorn Series temperature probe. Use with pH 5, pH 6, pH 11, pH 110 meters $52.50
WD-35615-05 Standard series temperature probe. Use with pH 10, pH 20, pH 100, pH 500, pH 1000, and pH 2500 meters $21.00
WD-35618-05 Waterproof series temperature probe. Use with pH 300, pH 310, and pH/CON 300 waterproof meters; and pH/CON 510 benchtop meter $75.00

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OAKTON Instruments P.O. Box 5136, Vernon Hills, Il USA 60061 info@4oakton.com