Ondilo is a French company whose ICO analysers float in a pool or sit in a spa and measure water temperature, pH, disinfection level (ORP) and, on salt versions, conductivity. Readings go to the ICO app, which gives dosing recommendations, and a documented cloud API lets other systems read the same data.
The ICO connects straight to the home router over Wi-Fi, with no hub. Ondilo says readings are taken once an hour, and every integration we found reads them from Ondilo's cloud rather than from the device on the local network.
That suits owners who want pool chemistry on a dashboard, in a notification or in a Home Assistant, openHAB or Jeedom automation. It is weaker for voice control or switching equipment: we found no detail on Alexa or Google Home support beyond a name check, no IFTTT service and no Matter, and the ICO only reports water data rather than controlling a pump.
Connection
Wi-Fi to the home router, through Ondilo's cloud
Voice assistants
Alexa named by Ondilo; Google Home not confirmed
Matter
Not found
Open platforms
Home Assistant, openHAB, Jeedom, eedomus and a cloud API
What can be connected
Pool ICO Pool water analyser: temperature, pH, ORP and salt or TDS
Spa ICO Spa water analyser for hot tubs and spas
Data Hourly readings, battery and signal strength, and dosing recommendations
The official app. It shows a dashboard of water parameters with daily, weekly and monthly graphs, personal target ranges, and guidance on chemical dosing. Ondilo's page adds sharing with family or a pool professional and a switcher for several pools or spas. The App Store listing says an ICO device is needed to use it fully and names Ondilo as the publisher. It does not mention Alexa, Google or Siri. The Android link uses the package name shown on a third-party app tracker that lists ONDILO as publisher, and we could not load the Google Play page itself to confirm it.
Official supported by the brandCommunity built by someone elseNot found searched, nothing foundUnconfirmed sources conflict or could not be opened
Platform
Status
What it means
Sources
Connection
Wi-Fi
Yes
Ondilo's ICO Spa page says the analyser connects directly to the home router over Wi-Fi, and that a Wi-Fi extender or powerline adapter (sold separately) can help reach a spa or garden. The page gives no frequency band.
Bluetooth is listed as a feature on the ICO Spa page, with no detail about what it is used for. We could not confirm whether it is used for setup or for control.
Ondilo's ICO Spa page names Alexa as a compatible home automation system, next to eedomus, Jeedom and Home Assistant, without describing how it works. We found no Alexa skill page from Ondilo, and its home automation article only describes Alexa, Google Home and Sonos speakers giving voice alerts through Home Assistant automations.
No Google Home integration found. Ondilo's home automation article says Google Home speakers can announce alerts that Home Assistant automations trigger, which is a Home Assistant feature and not an ICO link.
No SmartThings integration found when we searched.
Searched, no source
IFTTT
Not found
We searched for an Ondilo or ICO service on IFTTT and found none, and Ondilo's own pages do not mention IFTTT. IFTTT's own site could not be opened for this check.
A built-in Ondilo ICO integration reads water temperature, ORP, pH, TDS or salt, battery and signal strength. Its page lists the IoT class as Cloud Polling, says it arrived in Home Assistant 2021.2 and names a community maintainer, so the Home Assistant project and not Ondilo maintains it. Recommendations are not supported yet, and sign-in uses the password from the Ondilo mobile app rather than the website password. Ondilo's own article describes the integration as official.
A community app, ICO Pool/Spa, posted on the Homey community forum by the user evdpol and tagged official there, with a store page at homey.app/a/com.ondilo.ico. It reports battery, temperature, redox, pH, RSSI, salt and TDS changes as triggers and polls every 15 minutes. The last dated notice in the thread, from June 2023, warns that Ondilo's API returned unusual responses and the device may not work properly. The thread does not say which Homey models or whether a Homey Bridge applies, and we did not open the store page itself.
An Ondilo binding is in openHAB's official add-on list, shown here on archived 5.1 documentation. It covers ICO pool and spa monitors for chlorine and salt water, signs in through OAuth2 using an account bridge Thing, and discovers devices into the Inbox. The binding is maintained by the openHAB project, not by Ondilo.
Ondilo's home automation article describes a dedicated ICO plugin developed by Hotfirenet and installed from the Jeedom Market, which uses cloud polling and turns readings into virtual commands. It also mentions a paid pool plugin of about 4 euros for filtration scheduling. We did not open the Jeedom Market page.
Ondilo's article describes a native ICO connector in eedomus that reads redox, pH, temperature and battery through Ondilo's cloud API and creates widgets automatically. We did not open an eedomus page.
Ondilo publishes a REST Customer API at interop.ondilo.com for building your own app. It exposes the user profile, pools and spas, device details, the latest and historical measurements (temperature, pH, ORP, salt or TDS, battery, signal strength) and recommendations, which can be marked as done. Requests use a Bearer token from Ondilo's authentication service and are limited to 5 per second and 30 per hour per user. The page lists no terms, fees or sign-up process.
Checked 11 November 2026 against the brand's own pages, app store listings and each project's own page. “Not found” means we searched and found nothing, not that it is impossible. Compatibility changes often. Spot an error? Tell us and we will fix it.
Common questions about Ondilo ICO
Does Ondilo ICO support Matter?
Not that we could find. The ICO Spa page does not mention Matter, and we found no Ondilo announcement or product listing for it when we searched.
Does Ondilo ICO work with Alexa?
Not that we could find. Ondilo's ICO Spa page names Alexa as a compatible home automation system, next to eedomus, Jeedom and Home Assistant, without describing how it works. We found no Alexa skill page from Ondilo, and its home automation article only describes Alexa, Google Home and Sonos speakers giving voice alerts through Home Assistant automations.
Does Ondilo ICO work with Google Home?
Not that we could find. No Google Home integration found. Ondilo's home automation article says Google Home speakers can announce alerts that Home Assistant automations trigger, which is a Home Assistant feature and not an ICO link.
Does Ondilo ICO work with Apple Home (HomeKit)?
Not that we could find. No Apple Home or HomeKit support found on Ondilo's pages or in the App Store listing.
Does Ondilo ICO work with Home Assistant?
Yes. A built-in Ondilo ICO integration reads water temperature, ORP, pH, TDS or salt, battery and signal strength. Its page lists the IoT class as Cloud Polling, says it arrived in Home Assistant 2021.2 and names a community maintainer, so the Home Assistant project and not Ondilo maintains it. Recommendations are not supported yet, and sign-in uses the password from the Ondilo mobile app rather than the website password. Ondilo's own article describes the integration as official.
Does Ondilo ICO work with SmartThings?
Not that we could find. No SmartThings integration found when we searched.
Does Ondilo ICO work with Homey?
Yes, through a community-built integration. A community app, ICO Pool/Spa, posted on the Homey community forum by the user evdpol and tagged official there, with a store page at homey.app/a/com.ondilo.ico. It reports battery, temperature, redox, pH, RSSI, salt and TDS changes as triggers and polls every 15 minutes. The last dated notice in the thread, from June 2023, warns that Ondilo's API returned unusual responses and the device may not work properly. The thread does not say which Homey models or whether a Homey Bridge applies, and we did not open the store page itself.
Does Ondilo ICO work with Hubitat?
Not that we could find. No Hubitat driver or app found when we searched.
Answers come from the sourced table above. See how Ondilo ICO compares with all brands on the smart home brand statistics page.