12-Series Ammonium Ion-Selective Electrode (ISE)

The 12-Series Ammonium (NH4) Ion-Selective Electrode (ISE) is a premium laboratory or field electrode offering excellent performance and longevity in many water applications.


Sensor Type: PVC Membrane

Range: 0.03-18,000 ppm (as NH4)

Sample pH Range: 2-7

Slope: 55 ± 3 mV/ decade

Interferences: pH<2, Li+, Na+, K+, Cs+, Mg3+, Ca2+, Sr2+, Ba2+


    Refillable reference, replaceable sensor modules and standard 12mm diameter and 120mm length

    • The refillable, double-junction reference gives the electrode more longevity over sealed reference designs
    • The replaceable sensor modules (PVC matrix sensor type) allow you to periodically replace the sensor, rather than the whole electrode
    • Suitable for all general purpose or more advanced applications

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