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Coastal & Estuary
Flow & Discharge
Flood Warning
Groundwater
Meteorology
Surface Water
Nutrient Monitoring
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OTT UV Nitrate Sensor

The OTT ecoN can transmit data via SDI-12 interface due to the new OTT ecoN Modbus to SDI-12 Converter.

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Benefit from fast delivery times!

Do you have any budget left this year? Purchase the following reliable, accurate sensor technology designed specifically for hydrological applications till December 15th the latest and you’ll receive them still within 2020.

To the offer

OTT CAST: Let's Talk About The Weather

No Trade Shows? Welcome to our new podcast series instead! Register to get free access to three 20-minutes episodes.

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OTT SVR 100

A non-contact, compact surface water velocity radar sensor designed for measuring flow in open channels and rivers where reliable data is required, now with native SDI-12.

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NEW: ISE sensors for the HL Series

The Ion Selective Electrode sensors for Ammonium, Nitrate or Chloride are used for attended monitoring and qualitative monitoring programs

Discover the ISE's now

NEW: OTT ecoLog 1000 Water Level Logger

Introducing the new self-contained, cellular groundwater level logger for measuring water level and temperature.

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OTT Pluvio² S

The new benchmark in precipitation measurement - the new weighing precipitation gauge OTT Pluvio² S

learn more about the OTT Pluvio² S

New OTT SVR 100 Whitepaper

Our latest whitepaper takes a technical deep dive to showcase the technology that the OTT SVR 100 uses to collect measurements as well as verify their accuracy using QA/QC methods. Learn more about:

Download Whitepaper now!

Discover our project overview

You are looking for OTT HydroMet references to inform yourself about implemented projects? You find them on the project overview!

To the project overview

NEW: The OTT HydroMet Blog

Now, we’re ready to launch our new OTT HydroMet Blog. There you find, as usual, interesting and astonishing stories from the hydrological community as well as news about the broad product portfolio by OTT, Hydrolab, and Sutron.

To the OTT HydroMet blog