EcO Start XL

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Why use the EcO probe?

EcO is a pool/spa probe connected with our mobile application. Our probe helps pool/spa owners to keep clean and safe water, simplifying maintenance. The probe provides treatment recommendations and step-by-step explanations about pool care. 

Compatibility of the probe

Spa Swimming pool

Pack content

This pack includes :

  • One EcO probe;
  • Start guide;
  • Free products (1kg pH+, 1kg pH-, 1kg shock chlorine);
  • Additional products (5kg slow chlorine, 5kg shock chlorine, 5kg TAC+, 5kg TH+)
  • 5 test strips to measure Total Alkalinity, Hardness, and stabilizer;
  • One cup to measure your products; 
  • Unlimited access to the mobile app without any subscription.

This pack is designed to test our products. The consumption of maintenance products depends on factors such as the size of the pool, its nature, the weather, etc. Once your stock of samples is exhausted, you can order the necessary products from our online shop.

Use it with our app

You can free download our application on Apple Store (IOS) or Play Store (Android). Then you can follow advice from our recommendation engine to know when and how you can use our chemicals products.

How does it work?

Configure your pool/spa in the iopool app, then follow the launching procedure in the Start guide. There you go, EcO feeds your water data back to your smartphone when you are near your pool and provides you with treatment recommendations to keep the water clear and healthy!

Want to access your data wherever you are? This is possible by purchasing an iopool Bluetooth / Wi-Fi Gateway.

Main advantages

  • Self-contained;
  • Discreet;
  • Easy to set up and use;
  • 2-year warranty;
  • More precise than manual testing.

Most common questions

What if I am not satisfied?

There is little chance that this will happen because trying an EcO is adopting it! However, if you were not completely satisfied, don't worry: we offer a "Satisfied or refunded" guarantee valid for 30 days after purchase.

Can I use the probe with another brand of products than iopool?

Yes. However, for the best experience, we recommend using the iopool brand as our recommendation engine is based on our products.

What is the lifespan of the probe?

EcO has a lifespan of 2 years, after which you will have to order a replacement module including a new battery and sensors. Buying this module extends the warranty for two more years.

What is the warranty period of the probe?

The EcO probe is guaranteed for 2 years from the date of purchase.

Do I need to pay for any subscription?

No. You can access all functionalities without any subscription, including customer assistance by chat.

Can I access my data around the world?

This is possible by purchasing an iopool Bluetooth / Wi-Fi Gateway. By default, EcO uses Bluetooth Low Energy (BLE) technology to send data to your smartphone, so you have to be near the pool (approx. 9 m).

Which parameters are monitored by the probe?

The analysis parameters of the EcO probe are:

  • The water temperature;
  • The disinfection capacity (Redox capacity, ORP);
  • The pH (hydrogen potential).

Besides, thanks to the initialization process, our calculation algorithms have 3 important parameters:

  • The hardness of the water;
  • The alkalinity of the water;
  • The amount of stabilizer (cyanuric acid level).

Your question is not on the list?

Consult the dedicated section of our FAQ or contact us via in-app support or on the website.


After initialization, you can't get EcO out of water. See this article for more information.

Customer Reviews

Based on 3 reviews
bernard Moreau
excellent système fiable

Installation simple, même avec le relais wifi (si besoin en cas d'éloignement entre bassin et box). Et surtout une équipe qui est à l'écoute (par email) de façon extrêmement précise et réactive. Merci à vous. La reprise d'un bassin carrément vert et déséquilibré depuis 18 mois s'est fait sans problème particulier avec les bons conseils, pratiquement en temps réel (réponse dans la journée). Ce qui a permis d'avoir un bassin magnifique en 8 jours de remise en service, installation de la sonde et répétiteur des données sur mon portable habitant à 400km de ce bassin. Génial. L'appli est facile d'utilisation et les alertes d'intervention claires. La gestion du stock par l'appli fonctionne. Petit bémol que Iopool est en cours de correction; l'emballage des produits peut être amélioré avec un calage sérieux des produits dans les cartons.


Le kit est complet et les produits sont bons; je conseille.


EcO Start - XXL Pack - incl. EcO monitor + full access to iopool app + chemicals

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