With the Maelstrom® platform, access the hydrological data you need by choosing :
1. the plan(s) that suit you
2. the options you need.

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In the plans below,
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1. Plans

The subscription plans presented below are displayed excluding taxes and apply per sensor and per month.


the best way to get started
with your national network
0 /month
  • Access the
    national networks *
  • Access to the MAELSTROM® platform
  • Water height (and flow rate if available)
  • 1 custom alert threshold
  • 1 alert corresponding to your custom threshold
  • 1 user
  • Compatible options

*National networks of in situ sensors: Vigicrues, VNF (France), AIPO (Italy), OFEV (Switzerland), etc.

Sentinel Pro

the 360° monitoring
by vorteX-io
  • Access the
    vorteX-io network
  • Access to the full range of MAELSTROM® services
  • Real-time data
  • Water height / surface velocity / images / flow rate (if available)
  • Team of 3 users
  • Alerts by email/SMS/Voice Call
  • Data download
  • Comparison between sensors
  • Compatible options

Sentinel Premium

the custom-made service
that suits you
Contact us
  • You have
    specific needs?
  • We create
    your customized

  • 99% service availability guaranteed
  • Bathymetric profile measurement
  • Exclusivity of data
  • Integration of your own data
  • Etc.

2. Options

Fit the plans to your needs with add-on options.
The prices of the options are displayed excluding taxes and apply per sensor and per month.

Real-time alerts on a sensor from a national network

Alert notifications are based on custom thresholds set by your team.

Alerts by e-mail / SMS / voice call

15 €

Additional user

Add a member to your team.

Additional team member

5 €

Automated data export

Automated communication interface with hydrological data.

Interrogation of data via API

15 €

History of the vorteX-io network data

Access the data available since the installation of your vorteX-io micro-station. Choose the metric you are interested in (water height, surface velocity or images).

3 months of history

49 €

Any questions?

To learn more, use the form below
or see the answers to frequently asked questions.

Frequently Asked Questions

It’s pretty simple. Create a free account on the Maelstrom® platform to access the entire vorteX-io network available. Then you’ll be able to request a quote to subscribe to an existing hydrological monitoring station or to a new vorteX-io micro-station to be deployed in situ. Once your request is made, you will receive a quote to be digitally signed and vorteX-io will handle the rest.

The vorteX-io micro-station service subscription has no commitment beyond a unbreakable period of 12 consecutive months.

Yes, some options are compatible with the free Sentinel plan. The details are presented above in the column corresponding to this plan. You can display them by hovering over the line “Compatible options” with your mouse.

From a mobile device, click and hold your finger on the symbol to display these options.

Yes you can. Thanks to the flexibility of the vorteX-io micro-station service, you have the possibility to change your plan whenever you want.
By doing this, you can easily match your subscription to your data and services supply needs.

Absolutely, you can stack as many plans as needed to meet your data and services needs.

The following payments methods are accepted:

  • by credit card
  • by SEPA direct debit (Single Euro Payments Area)
  • via online platforms such as Chorus Pro.

You can simply send your bank details via the contact form on our website.

To end your subscription, you can send your cancellation request via the contact form on our website.

The notice period is 1 month beyond the 12-month commitment period.

Depending on your type of subscription and chosen options, you can unsubscribe from all or part of the options at any time. The 1-month notice period also applies to options.

Yes, beyond the 12-month of unbreakable commitment period, it is possible to consider a seasonal subscription to the Sentinel Pro plan.

The difference between the standard service, which ensures handling of defective or damaged equipment within a maximum of 1 month from the date agreed with the customer, and the premium service, which offers our customers a replacement within 5 business days. This guarantees the continuity of the time series of measurements and real-time service availability.

Première visite ?

Il existe plusieurs types de plans d’abonnement pour accéder à la plateforme MAELSTROM®

Accédez à MAELSTROM®


Vous avez déjà un compte sur MAELSTROM® ou vous souhaitez en créer un

First visit?

There are several types of subscription plans to access the MAELSTROM® platform



You already have an account on MAELSTROM® or you want to create one