VERNIER POTASSIUM ION-SELECTIVE ELECTRODE
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. Please allow 4-6 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.

Requirements:
This sensor requires suitable software and an interface such as one of the Vernier LabQuest variations or Vernier Go-Link.
For comprehensive details of the possible sensor/interface/software combinations see the Compatibility Guide link below.

Included:
• 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.

Specifications:
• Range: 90 – 39,000mg/L (or parts per million)
• pH range: 2 – 12
• Temperature Range: 0 – 40°C (not compensated)
• Interfering Ions: Rb2+, Cs2+, NH4+, Ca2+, Mg2+, Li+
• Electrode Resistance: >50 mΩ
• Electrode Slope: 56 +/- 4mV/decade at 25°C
• 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)

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  Dimensions
  • Package size (HxWxD): 76x102x311mm
  • Packed weight: 360g

    Last edited 23rd Jan 2024

    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.

    Works with:	From
    LQ3 - Vernier LabQuest 3 Data Logger and Interface	$972.00
    LABQ2 - Vernier LabQuest 2 Data Logger and Interface	$835.00
    LQ-MINI - Vernier LabQuest Mini Data Logger Interface	$455.00
    GA4 - Vernier Graphical Analysis	$0.00
    LP-E - Vernier Logger Pro 3 Software Electronic Version	$666.00
    GO-LINK - Vernier Go!Link Data Logger Interface with Logger Lite Software	$180.00
    K-LST - Vernier ISE Potassium Low Standard	$60.00
    K-HST - Vernier ISE Potassium High Standard	$60.00
    K-MOD - Vernier ISE Potassium Replacement Module	$223.00
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    GDX-K - Vernier Go Direct Potassium Ion-Selective Electrode	$695.00
    GDX-NO3-BNC - Vernier Go Direct Nitrate Ion-Selective Electrode BNC	$599.00
    GDX-NH4-BNC - Vernier Go Direct Ammonium Ion-Selective Electrode BNC	$599.00
    GDX-K-BNC - Vernier Go Direct Potassium Ion-Selective Electrode BNC	$599.00
    GDX-CA-BNC - Vernier Go Direct Calcium Ion-Selective Electrode BNC	$599.00
    GDX-CL-BNC - Vernier Go Direct Chloride Ion-Selective Electrode BNC	$599.00
    NH4-BTA - Vernier Ammonium Ion-Selective Electrode	$719.00
    CA-BTA - Vernier Calcium Ion-Selective Electrode	$719.00
    CL-BTA - Vernier Chloride Ion-Selective Electrode	$719.00
    NO3-BTA - Vernier Nitrate Ion-Selective Electrode	$719.00
    NH4-BNC - Vernier Ammonium Ion-Selective Electrode BNC	$601.00
    CL-BNC - Vernier Chloride Ion-Selective Electrode BNC	$601.00
    CA-BNC - Vernier Calcium Ion-Selective Electrode BNC	$601.00
    K-BNC - Vernier Potassium Ion-Selective Electrode BNC	$601.00
    NO3-BNC - Vernier Nitrate Ion-Selective Electrode BNC	$601.00

    Documents:
    Catalogue	Vernier Catalogue K-12
    Catalogue	Vernier Catalogue Uni
    Catalogue	May 2024 Web Catalogue
    Compatibility Guide	Sensor-Interface-Software Requirements (external link)
    User Manual	Vernier Potassium Ion-Selective Electrode

    
    Note: Prices do NOT include GST or freight