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New: OTT UV Nitrate Sensor

Learn more about reliable and high quality measurements with the OTT ecoN.


New: Sutron XLink 100 and 500 Datalogger / Transmitter

Learn more about the Multi-Sensor Input Logger with data transmission via lridium or Cellular.


OTT customer picture of the month: "Winter Creek"

New: OTT SVR 100

A non-contact, compact surface water velocity radar sensor designed for measuring flow in open channels and rivers where relibale data is required.


NEW: Combo package Hydromet Cloud & OTT ecoLog 500

Save costs and time-consuming trips to the measuring site as you have access to your data at any time and wherever you are.

more information

Discover the NEW Lufft WS100 Precipitation Sensor

Fast, safe & absolutely maintenance-free precipitation measurement, thanks to innovative radar technology!


Hydrolab HL7

Continuous Water Quality Data, Reliability and Usability You Can Trust


OTT Pluvio² S

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

learn more about the OTT Pluvio² S

OTT ecoLog Series

In-well groundwater monitoring solutions with remote data transmission

Learn more about the OTT ecoLog 500/800

OTT MF pro

Electromagnetic current meter with color handheld display

Learn about the OTT MF pro


High accuracy, drift-free surface water level sensor that meets FCC radar level requirements for hydrologic applications

Learn about the OTT RLS

Free Whitepaper: OTT SVR 100

What are the applications for continuous flow measurement in rivers, streams and canals? How do you get reliable measurement results? And who guarantees the quality of your data, especially in extreme events with high outflows? Download the Whitepaper and learn more about the operation principle and benefits of surface water velocity measurement with the OTT SVR 100.

Download Whitepaper

Free Download: WQ Selection Guide

Measurement of water quality is decisive for the characterisation of water bodies. OTT Hydromet offers a variety of water quality instrumentation and nutrient sensors for long-term applications. Learn more about our water quality instruments and which one works best for you!

Download Selection Guide

Get Your Urban Hydrology Guide!

The growth of urban areas represents an enormous challenge: Urbanization increases both water demand and the area of impervious surfaces – highways, pavements, roofs, parking lots etc. Coupled with the impacts of climate change, this has an impact on water availability, flood protection and stormwater run-off.

In this complimentary guide, we address current conditions, strategic plans to combat these issues and sustainable urban hydrology monitoring solutions.

Download Guide Now