

Standard Shipment
3 - 5 working days
IMPORTS
6 - 8 Weeks
R12,836.07 incl. VAT
Combined calcium ion-selective electrode 972124 with a built-in ClickOk Reference. It measures Ca²⁺ from 5 × 10⁻⁷ – 1.0 M (20 µg/L – 40 g/L) and plugs straight into any ion meter or titrator with a BNC(Q9) input. PP body, Φ12 × 120 mm.
The calcium ion selective electrode 972124 is a combined electrode. In other words, the pvc membrane, replaceable sensing element and the reference half-cell share one Φ12 × 120 mm body. As a result, your meter needs only a single BNC(Q9) connector — no separate reference electrode and no second cable.
Specifically, it measures Ca²⁺ from 5 × 10⁻⁷ – 1.0 M (20 µg/L – 40 g/L). Moreover, it works from 0 – 40 °C and at a pH of 2.5 – 11. Refillable reference. The junction is a movable plastic grinding mouth. However, Pb²⁺ interfere. Finally, it pairs with any ion meter, for example the M310F multi-parameter analyser, or with an automatic titrator.
| Type | Combined Ion Selective Electrode |
|---|---|
| Ion measured | Ca²⁺ |
| Measuring range | 5 × 10⁻⁷ – 1.0 M (20 µg/L – 40 g/L) |
| Sensing membrane | PVC membrane, replaceable |
| Body material | PP |
| Dimensions | Φ12 × 120 mm |
| Working temperature | 0 – 40 °C |
| Connector | BNC(Q9) |
| Junction | Movable plastic grinding mouth |
| Filling solution | Fillable |
| Reference type | ClickOk Reference |
| Working pH range | 2.5 – 11 |
| Interfering ions | Pb²⁺ |
| Reference electrode required | 232–01 |
Specifically, the table lists the manufacturer’s ratings. Therefore, ask us if your application needs a value that is not shown.
This electrode serves water-hardness and boiler-feed control, dairy and food QC, and soil extracts. Therefore, calibrate it with standards that bracket your sample for accurate results. In addition, keep sample and standards at the same temperature.
Hadron Group runs its own water laboratory in Pretoria. In addition, we supply analytical instruments to municipal, mining, food and industrial laboratories across South Africa and the SADC region. We stock the electrodes we use ourselves. Moreover, calibration standards, filling solutions and replacement membranes are available for every model. Finally, we help you match the electrode to your meter before you order.
How do I order the calcium ion selective electrode 972124? Quote the model number and your meter. In addition, tell us which standards and filling solutions you need, and we will quote the set.
Do I need a separate reference electrode? No. The reference half-cell sits in the same body. Therefore you simply connect the single BNC(Q9) plug to the ion (mV) input of your meter.
Which meters is it compatible with? In short, any ion meter, pH/mV meter with an ISE mode, or titrator with a BNC(Q9) input. For field work, for example, the M310F multi-parameter analyser (pH, EC, ISE, DO) has a dedicated ISE mode.
What is the measuring range in concentration units? The range is 5 × 10⁻⁷ – 1.0 M. In other words, it corresponds to 20 µg/L – 40 g/L.
Related: M310F multi-parameter analyser (pH, EC, ISE, DO) · all electrodes & probes.


3 - 5 working days
6 - 8 Weeks
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