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Vernier Potassium Ion-Selective Electrode

Order code: K-BTA
Purchase QTY: (Each)1+    
Scientrific's price  $597.00    
Note: Prices do NOT include GST or freight

The Vernier Potassium Ion-Selective Electrode can be used to measure the concentration of potassium (K+) ions in aqueous solutions.

The Vernier Potassium Ion-Selective Electrode makes the measurement of potassium ions portable. When used with a Vernier LabQuest 2, the Potassium ISE can take readings in the field at lakes or streams. This sensor is easier to set up and use than other methods of measuring potassium ion concentration in aqueous solutions. Because it is a stick-style sensor, its use is similar to using a conductivity probe or a pH sensor in a laboratory setting or in the field.

As this product has a finite shelf life we import it as required, allow 4 to 6 weeks for delivery from the date of your order.

Note: We recommend that you do not purchase ISE replacement modules too far in advance of their expected time of use as degradation occurs while they are stored on the shelf.

Important: Ion-Selective Electrodes require good chemical technique and careful calibration to obtain accurate results; they are not recommended for junior high school students.

Compatibility Requirements:
The Vernier Potassium Ion-Selective Electrode may require a compatible interface and software.

30 mL bottle of High Calibration Standard (1000mg/L)
30 mL bottle of Low Calibration Standard (10mg/L)
short-term soaking bottle
Replacement standards can be purchased separately.

Range: 90 39,000mg/L (or parts per million)
pH range: 2 12
Temperature Range: 0 40C (not compensated)
Interfering Ions: Rb2+, Cs2+, NH4+, Ca2+, Mg2+, Li+
Electrode Resistance: >50 mΩ
Electrode Slope: 56 +/- 4mV/decade at 25C
Calibration Voltage (typical): 2.7 V (1000ppm), 1.9 V (10ppm)
Reproducibility (precision): +/- 11% of full scale
Minimum sample size: 3mL in a 50mL beaker
Accuracy: +/- 16% of full scale

Educational use only:
Vernier and Kidwind products are designed for educational use. They are not appropriate for industrial, medical or commercial applications. Details

  • Warranty: 5 years (1 year on module)
    • Package size (HxWxD): 76 x 102 x 311mm
    • Packed weight: 360g

      Last edited 19th May 2022

      This product is used in teaching these Australian Curriculum codes:
      ACSSU176 - Biological Sciences - Ecology - Ecosystems consist of communities of interdependent organisms and abiotic components of the environment; matter and energy flow through these systems

      Click a curriculum code to see other products that relate.

      Accessories / Spare Parts:From
      K-LST - Vernier ISE Potassium Low Standard $45.00
      K-HST - Vernier ISE Potassium High Standard $45.00
      K-MOD - Vernier ISE Potassium Replacement Module $207.00
      Works with:From
      LABQ2 - Vernier LabQuest 2 Data Logger and Interface$835.00
      LQ-MINI - Vernier LabQuest Mini Data Logger Interface$398.00
      GO-LINK - Vernier Go!Link Data Logger Interface with Logger Lite Software$167.00
      EZ-LINK - Vernier Easy Link$165.00
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      CatalogueVernier Catalogue K-12
      CatalogueVernier Catalogue Uni
      User ManualGetting Started - Connecting your sensor (External Link)
      User ManualVernier Potassium Ion-Selective Electrode

      Note: Prices do NOT include GST or freight