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Load image into Gallery viewer, Repacked - EcO Start - Pack without subscription - incl. EcO monitor + full access to iopool app + free chemicals - Start Packs - iopool
Load image into Gallery viewer, Repacked - EcO Start - Pack without subscription - incl. EcO monitor + full access to iopool app + free chemicals - Start Packs - iopool
Load image into Gallery viewer, Repacked - EcO Start - Pack without subscription - incl. EcO monitor + full access to iopool app + free chemicals - Start Packs - iopool
Load image into Gallery viewer, Repacked - EcO Start - Pack without subscription - incl. EcO monitor + full access to iopool app + free chemicals - Start Packs - iopool

EcO Start Repacked

Regular price 209.00 EUR
Sale price 209.00 EUR Regular price
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Ecology without compromise: Choose EcO Refurbished!

Opt for an eco-friendly and cost-effective alternative with our refurbished version of EcO! Enjoy the same outstanding performance at a budget-friendly price.


  • Ecological: Refurbished and tested, 2-year warranty, as eco-friendly as it is economical.
  • Discreet: EcO seamlessly blends into your pool.
  • User-Friendly: Simply let it float.
  • Improved Precision: Reliable measurements for consistently clean water.
  • Free iopool App: Receive personalized maintenance recommendations.

Let It Float

All you need to do is place EcO in the water after following our step-by-step guide. Thanks to the iopool application, you can then obtain real-time readings from the water analyzer: pH level, ORP (oxidation-reduction potential) or disinfection capacity, and water temperature.

ORP, or oxidation-reduction potential, determines the overall quality of pool water. It measures the general level of sanitization.

This Package Includes

  • The EcO analyzer.
  • Startup guide;
  • A measuring spoon;
  • 3 test strips;
  • Free access to the iopool application.

iopool Application

The iopool application provides you with maintenance recommendations based on data collected by the EcO probe. Say goodbye to guesswork! The application informs you when and how much product to use to maintain your pool's chemical balance. EcO + iopool Application = Balanced, Safe, and Clear Water 24/7. You can download our application for free on the Apple Store (iOS) or Play Store (Android).


Treatment Spa Pool
Active Oxygen ✓*

*In addition to a chlorine-based treatment.

But There's More...

Bluetooth connectivity allows you to access data from up to 9 meters away. Want to monitor your data from anywhere? You can do so by purchasing a iopool Bluetooth/Wi-Fi gateaway, or by choosing our bundled offering EcO Start and Connect.


  • EcO must always remain submerged in water. Prolonged exposure to air can damage the sensors.
  • Incompatible with salt-treated pools/spas. For this type of treatment, please consider EcO Start Salt + Connect.
  • EcO must be stored appropriately (following the application's instructions) when the water temperature is below 15 degrees Celsius.

Frequently Asked Questions

What about test strips?

Test strips are always useful for measuring stabilizer levels, alkalinity, and water hardness. The application will suggest performing strip tests during installation and as needed. For more information, visit our blog.

What if I'm not satisfied?

If you're not entirely satisfied, take advantage of our 30-day money-back guarantee.

Can I use EcO with non-iopool brand pool chemicals?

Absolutely. However, for the best experience, we recommend using our iopool pool maintenance chemicals. Why? Because our recommendation engine is designed around our products.

What is the probe's lifespan?

EcO has a lifespan of 2 years. After that, you can order a replacement module. Purchasing this module extends the warranty for an additional two years.

What is the probe's warranty period?

The EcO probe is covered by a 2-year warranty from the date of purchase.

Do I need to subscribe to a subscription?

No, there is no subscription required.

Can I access my data worldwide?

Yes, you can do so 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 need to be near the pool (approximately 9 meters).

What parameters does the probe monitor?

The EcO probe monitors the following parameters:

  • Water temperature;
  • Disinfection capacity (oxidation-reduction potential, ORP);
  • pH (hydrogen potential).

Don't see your question on the list?

Check out our dedicated FAQ section or contact us through the in-app support or on our website.

Property Description Quantity Unit
IOT Connect your probe with our IOS or Android application NA NA
Weight of package +/- 1kg 1 Kg
Weight of EcO probe Lightweight 150 g
Size (Height) Small 20 cm
Size (Width) Small 5 cm
Bluetooth (Low Energy) A technology that uses less electricity, allow our probe to have a much longer life time 0 NA
Lifetime 2 years lifetime. After that, you should buy a remplacement module (99,00 €) 2 years
Recommanded price, taxe included 199,99 € 199 euro (€)
Registred data Water temperature,
desinfection capacity (Redox, ORP), pH NA NA
Recommandation engine Water hardness, water alkalinity
amount of stabilizer (cyanuric acid level) NA NA
Related articles Bluetooth / Wi-Fi Gateway, ioapp, chemicals, replacement module NA NA

Customer Reviews

Based on 41 reviews
Haghebaert Aurélien

EcO Start Repacked


Ne fonctionne pas après 15 jours...


Je vous invite à contacter notre équipe à l'adresse

Cordialement, l'équipe iopool

delphine pomeyrol
Enfin sereine

Depuis 2 années, l'équilibre de ma piscine était difficile à stabiliser.
Depuis l'utilisation de ma sonde iopool, l'eau est parfaite et moi tellement plus sereine

Chantal Van Campenhout
Bon matériel

Livraison rapide et matériel conforme aux attentes. Très pratique

Défectueuse après 10 jours

Écart de 2 points dans le pH, il me disait eau trop acide avec un pH de 5,1 mais en fait, après un test bandelette confirmant un pH trop haut (car oui, j’ai suivi l’application qui me demandait de remonter le pH), je me retrouve aujourd’hui avec un pH à 9,1, et une consommation de pH- phénoménale. ( car il baisse mais remonte)
contact avec le support, test avec de l’eau minérale à 7,7 la sonde plafonnait à 5,6 en pH.
Même pas sûr que l’orp fonctionne lui aussi.
Du coup le support me fait parvenir un test pour calibrer la sonde, qui va durer combien de temps?!

Moi qui voulais une sonde pour me faciliter la gestion du bassin, j’en reviens à faire des tests à la bandelette chaque jours.
Point positif: le support a été réactif mais pas sûr de prolonger avec ce produit dans 2 ans, avec le remplacement de la sonde.

Franck Constant

Très bon produit, permet de maintenir un chimie efficace de l'eau (devenu cristalline depuis l'utilisation) alors qu'avant l'équilibre était précaire. Je recommande vivement

Patrick Acker
Avis sur sonde et application Iopool

Très satisfait de la sonde ÉCO d’Iopool. Résultats rapides sur l’eau de piscine, conseils très judicieux pour l’équilibrage de l’eau et la durée de filtration avec l’application.
Suivi du stock produits restants est bien venu.