Modular water monitoring
Measuring buoy with mobile data tracking
Built in
Add what you need
Who it's for
Installation in Kiel · 2025
Fish and seaweed farms: see temperature and oxygen where your fish or seaweed grow.
Installation in Kiel · Sept 2024
Universities and institutes: temperature, light and waves, continuously, without a boat trip for every reading.
Installation in Kiel · March 2024
Harbours, lakes and local authorities: a live read on temperature, oxygen and waves in their own water.
Partners
HYDRA measures your water where it is. Its web-based application shows you what it finds and alerts you when something changes.
Temperature, light, waves — plus oxygen, salt content or decay.
Every buoy in one dashboard — live values, trends, field notes.
Set a threshold — get notified the moment a reading crosses it.
Working with us
01
Where it is, what you want to see and how many buoys. Choose your buoys online or write to us.
02
We reply within 1–2 business days with a quote for your configuration. No payment, no obligation.
03
We recommend the setup, including the gateway on shore, and support the installation.
04
Once a buoy is in the water, its readings appear in your web app. Open it whenever you like, on your phone.
A gateway on shore. HYDRA sends its readings to it over LoRaWAN, and it forwards them to the web app over an internet connection — cable, Wi-Fi or mobile data all work. What you need depends on where you measure: tell us the location and we will work it out with you.
Up to 14 km over open water, with a clear line of sight between buoy and gateway. Obstacles, land in between and a low gateway antenna shorten that considerably, so tell us about your location in the quote request.
Yes. The buoys themselves need regular calibration, and marine growth has to be cleaned off. We do that on a service plan, or you do it yourself.
The buoy is a one-time price per package, from €990 excl. VAT. The web app — dashboard, history and alerts — is €10 per buoy and month, with a 12-month term. The gateway on shore is quoted with your request. Installation, a service plan and reports are optional and quoted individually.
That depends on your location. We recommend the setup and support the installation; you can also install with your own team or a local partner. For now we work on the German and Danish Baltic coast; other regions on request.
That depends on your location and region. Please check the local regulations for where you plan to deploy before placing a buoy.
