ICO has two or three removable sensors, depending on the Chlorine/Bromium or Salt version: pH, ORP and conductivity (TDS). They analyse the quality of the water in your pool or spa. It's important to look after your probes so that they work at their best: handling them with care and carrying out regular calibration is the best way to keep them intact. It's also important to protect them during the winter, to ensure they work properly afterwards. Here's how.
When unpacking, keep the probe covers for winter storage.
When you first unpack ICO , the three probes are protected by black plugs that contain small sponges. During the first use remove the plugs then keep them in the packaging box. You can use them again each winter or when you're not using ICO.

Steps to protect your ICO probes in winter:
After hiverné votre piscine or hiverner votre spa, il est impératif de protéger votre ICO pour l’hiver in order to protect the battery and probes over the long term, prevent deterioration of the microporous bulb, and halt natural wear and tear on the probe.
After pulling out of the water and Switch off your ICO device. :
- Unscrew the lower part of your ICO to access the pH and ORP probes
- Buy KCL-storage in our Ondilo store or from your local retailer.
- Rinse the pH (blue sensor) and ORP (yellow/orange sensor) sensors with distilled water.
- For pH and ORP probes, remove the sponges located in each protective cap.
- Pour a few drops of KCL solution onto the yellow sponges in the black caps to soak them thoroughly.
- Replace the sponges at the bottom of protective caps
- Insert black caps on every sensors
- Repeat the operation every 60 days (2 months) throughout the wintering period.

Where to place ICO during the winter?
In order to protect ICO from cold and damp, avoid storing it in a cellar, garage or equipment room. Store it instead in a dry place at room temperature (between 15°c and 25°C) to protect your device. For further information, please refer to ICO terms of use.