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Glass-bodied pH electrode probe with cable and connector

REED INSTRUMENTS

REED INSTRUMENTS R3500-ELECTRODE Replacement pH Electrode

SKU CH-FYWP-KBTR0

Replacement pH electrode restores accurate measurement for REED R3500 meters

  • Direct replacement for REED R3500 pH meter
  • Maintains accurate pH readings with genuine REED electrode
  • Ready for immediate laboratory use as new stock
  • Manufactured by REED INSTRUMENTS for guaranteed compatibility
  • First listed by manufacturer on October 29, 2022

Direct replacement for REED R3500 pH meter

The electrode is manufactured by REED INSTRUMENTS to fit the R3500 pH meter without modification. It is intended for technicians and laboratory staff who need a factory-matched sensor for routine pH measurement. The part arrives new and ready for immediate calibration. No other instruments are supported by this specific electrode.

Simple screw-in installation

The electrode threads into the meter body and connects through the existing BNC-style connector used by the R3500. Installation requires no tools beyond hand tightening. The most common issue is skipping the required two-point calibration after fitting, which causes drifted readings. Drying out the glass bulb during storage will also shorten sensor life.

Model-specific compatibility with REED R3500 only

This electrode is engineered exclusively for the REED R3500 pH meter and will not function with other REED models or third-party meters. Buyers who need a sensor for a different instrument must select the electrode listed for that specific model. The 3500 designation in the part number confirms the single-model fit.

How it compares

Measured against everything we stock in Lab Equipment & Supplies, at today’s prices. Recalculated every night.

Price $23.99
Cheaper than about 80% of the 734 comparable items (median $60.99).

Specifications

Product
Brand nameREED INSTRUMENTS

Questions about this item

How do I verify the REED R3500 electrode is working correctly after installation?

Connect the electrode to the REED R3500 meter and calibrate using standard pH buffer solutions. A stable reading that matches the buffer value confirms proper operation.

What comes with the REED R3500-ELECTRODE and what must be purchased separately?

The package contains the replacement pH electrode only. Calibration buffers, storage solution and the REED R3500 meter itself are sold separately.

Which replacement electrode do I need for the REED R3500 meter?

The R3500-ELECTRODE is the direct replacement specified for the REED R3500 pH meter.

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