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Groundwater

Measuring groundwater level or depth-to-water is critically important for identifying long term trends, including declining water levels, saltwater intrusion, seasonal variations, aquifer recharge, artificial aquifer storage and recovery, and level...

Surface Water

Measuring water quantity and quality in surface water (open channels, rivers, reservoirs, lakes, and estuaries) is one of the foundations of hydrological monitoring and has been a focus of OTT Hydromet since its first  water current meters were...

Urban Hydrology

Urban Hydrology deals with the specific aspects of the hydrological cycle in urban and industrial settings. This includes all natural water flows as well as the consideration of precipitation, storm water, groundwater, rivers, and lakes, but also the...

Flood Monitoring

While some areas are more prone to flooding than others, the establishment of flood monitoring systems near every major river or water body provides important information that helps protect property and lives. Of course, the most effective flood...

Mining

Ensuring that pollutants from mining activities do not enter surrounding natural water bodies is a key issue in environmental monitoring and regulatory compliance. Hydrolab multiparameter sondes can measure a variety of parameters pertaining to...

Hydropower

Monitoring the impact of Hydropower plant activities on water bodies can be important for regulatory compliance and modeling purposes.Hydrolab instruments can measure total dissolved gas (TDG) levels around Hydropower activities and both Hydrolab and...

Modern monitoring network in the Indian Ocean

Three public authorities in Sri Lanka are responsible for various tasks in water management and they all depend on hydro-meteorological data. However, the existing monitoring network was in poor condition and reliable, up-to-date measurement values...

Flow & Discharge

Measuring water flow and discharge to determine the amount of water flowing through an open channel is critical for predicting water availability and flood events, allocating watering, and more. OTT Hydromet has been a leader in flow meter...

News and Pressroom

In recent years the development of flood warning systems has benefited from advances in sensor, datalogger and communications technology. The expansion of mobile telecommunications has meant that more locations now benefit from increased...

Meteorology

High-accuracy precipitation data is used for watershed monitoring, airport and highway transportation forecasts,  general weather forecasting,  and Doppler radar ground truthing. OTT Hydromet offers a variety of precipitation measurement...

Oil & Gas

Monitoring natural water bodies surrounding oil and gas drilling activities like hydraulic fracturing is a key issue in environmental monitoring and regulatory compliance. Hydrolab multiparameter sondes can measure a variety of parameters pertaining...

Agriculture & Irrigation

OTT Hydromet sensors can provide key information on trend identification and regulatory compliance for water quality and quantity parameters around agriculture and irrigation activities. OTT water level and flow sensors can measure the discharge of...

Village installs local flood warning system | Oxton - Nottinghamshire

A village in Nottinghamshire has installed an advanced river monitoring system from OTT Hydrometry that automatically issues text (sms) message alarms so that residents can implement flood protection measures. Oxton has a history of flooding problems...

Remote Water Quality Monitoring in South Africa

Situated in the Mpumalanga province of South Africa, the Xstrata Coal South Africa (XCSA) runs several open cut and underground mining operations producing thermal coal.To ensure their mining operations do not affect the surrounding natural water...

Continuous Discharge Monitoring in Mecklenburg - Germany

The Wallensteingraben was originally constructed as a channel and is almost 20 km long. In the context of implementing the European Water Framework Directive, goals include improving ecological passability. At the same time a measurement site for the...

Dam Monitoring in South Africa

The purpose of the Komati River Basin Development Project is to ensure the availability of water in order to promote economic development in the region. OTT’s part of the project was to supply dataloggers for the monitoring of the river flows into...

Bedford Flood Gate Control

Bedford Borough Council have been given responsibility for the management and control of 2 flood gates on the Great Ouse in the center of Bedford. OTT Hydrometry were successful in the tender process and were commissioned to install a monitoring...

New monitoring network for Scottish ports

In the past, the ferries operating off the west coast of Scotland would have to sail to port to assess weather and tidal conditions would allow them to berth alongside the pier.  In efforts to save time, fuel and costs, the Caledonian Maritime Assets...

Harris County Flood Warning System

The Harris County Flood Control District in Texas was created in 1937 as a response to the devastating floods that struck the region between 1929 and 1935. The District's boundaries protect 3.7 million people and include the city of Houston....

Flood protection program Zulawy, Gdansk – Poland

Zulawy is a region which is located in the delta of Vistula River in north Poland. The area of Zulawy is about 175 000 ha, almost 26% of which is situated below sea level. Because of that, Zulawy has an impressive infrastructure – kilometers of...

Well monitoring for a water supplier

The municipality company, in city of Luebek, Germany, provides potable water for approximately 120,000 households, all pumped from more than 30 wells.  These wells have water levels as deep as 160 meters.  The water levels of these groundwater wells...

Precipitation Measurement in East Tyrolia High Mountains

The Defereggen Valley's remote location is in the middle of the East Tyrolean high mountain valleys in the Alps. Due to the remote location, extreme weather conditions, and lack of infrastructure, it had not been possible to install an official...

Groundwater Monitoring around Hydraulic Fracturing Sites in Colorado

Hydraulic fracturing or ‘Fracking’ has become more prevalent and controversial in the US in recent years. More than 90 percent of new wells in the US are completed using this method. While it is endorsed by some as a game-changer that promises an...

Monitoring ditch water quality using OTT ecoN, Hydrolab HL4 and XLink 500

The RIVM in the Netherlands is using the OTT ecoN and the Hydrolab HL4, connected to an XLink 500 datalogger, to monitor the temporal variation of nutrients in ditch water. The data is sent to Hydromet Cloud. The goal of this project (WaterSNIP) is...

Coastal & Estuary

Measurement of water quality in coastal regions and estuaries is critical in the characterization of hypoxic ‘dead zones’ as a result of nutrient loading and algal blooms in the water bodies. Sediment loading analysis through turbidity measurement is...

Rosenheim – Discharge Measurement under challenging conditions

The measurement station in Bad Aibling Triftbach, which is part of the state measurement network operated by WWA Rosenheim on behalf of the Bavarian State Office for the Environment, has been in successful operation for some time now. In 2018 this...

Ireland Groundwater Monitoring Program

To fulfill the EU Water Framework Directive (WFD) requirements, a groundwater monitoring program was established by the Environmental Protection Agency of Ireland. This program focuses on providing information to assess the environmental status of...

Control of Dredging Works in the Danube River - Austria

The Austrian waterway management has introduced an automatic system to monitor a series of barges, which calculates the dredged material as a basis for handling invoices of the dredging companies. Before converting to a remote data transmission...

49 stations along the Mekong River - Cambodia - Vietnam - Laos - Thailand

The Mekong River Commission Secretariat (MRCS) is a Basin Management Organization formed through the joint-cooperation of Cambodia, Lao PDR, Thailand and Vietnam. China and Myanmar are also partners with the MRCS. The organization aims at...

Nutrient Monitoring

Continuous monitoring of nutrient levels provides crucial information about daily, seasonal and event based changes in water quality conditions, and can be a strong indicator on the overall health of the water body.  In recent years, monitoring of...

Reservoir Aabach Germany - Continuous monitoring of contact pressure

With a total volume of approximately 20 million cubic meters of water and a length of 450 meters, the reservoir supplies drinking water for 200.000 people in the area and fulfils also an important  function in the flood protection there. With the new...

OTT Hydromet Water Level Solutions

Pressure sensor with built-in data logger manages and stores pressure, depth to water, water level, and/or temperature measurements at programmable intervals.  Pair the Orpheus Mini with the OTT ITC for remote data acquisition. High...

OTT Pluvio²L in use for a research project in Antarctica

Close to McMurdo Station in Antarctica, researchers from the University of Colorado, Boulder and the National Center for Atmospheric Research are investigating methods to measure the accumulating snowfall in the harsh Antarctic environment. These...

Weather stations for the 2014 Winter Olympic Games in Sochi

For real-time meteorological data at the XXII Winter Olympic and XI Winter Paralympic Games in Sochi from February–March 2014, 29 specialized automatic meteorological stations (AMS) were installed in the areas close to the Olympic sport venues from...

Precipitation monitoring in the Sierra Nevada - Spain

This OTT Pluvio² precipitation measuring station “Tajos de Breca” is situated 2470 meters (8103.67 feet) above sea level at the southern slope of the Sierra Nevada for long term meteorological data collection. The station forms part of a measuring...

Groundwater Monitoring Underpins Management of the Great Fen, UK

In 2001, five organizations came together to set out a vision for the Great Fen, with the aim of providing a more sustainable future for the area. In many respects, this work focuses on restoration by managing water levels, so a network of monitoring...

Anwenderforum

Accurate flow and discharge measurement has been a core competency of OTT Hydromet since we created our first flow meter in 1875. Choose from a variety of either portable or stationary measurement options using different measurement...

Monitoring underground water resources in Brazil

The Coca-Cola FENSA plant in Mogi das Cruzes is responsible for bottling mineral water supplied from two ground water sources. The plant is a benchmark for environmental sustainability projects. With this pioneer project the Mogi das Cruzes plant was...

Weather data for nautical information system

In Lemwerder, Germany at the Weser River, wind direction and speed are measured and transferred in 60 second intervals via the OTT netDL 1000.  The data is transmitted, wireless, over a distance of 600 meters to the radar tower in Ritzenbuettel,...

Satellite telemetry supports flood protection in Scotland

Scotland's water is famed worldwide, and performs vital roles both in tourism and in the production and branding of some of the country’s greatest exports. Water resources are monitored closely by the Scottish Environment Protection Agency (SEPA) to...

E.ON Power Plant Nuremberg

Water level, water flow and discharge are monitored at two inflows of the E.ON electricity power plan Franken I, using the OTT SLD, with horizontal Doppler-flow sensors. The purpose of this measurement is to optimize the operation of the plan which...

Flood Warning Station at Kriebstein, Saxony - Germany

As flood-warning station and hydrometric base station with a catchment basin of 1754 km2 , reliable data monitoring is extremely important for the hydrological balance of Freiberg and for the whole area around the Mulde. The power plants, located up...

Remote location requires minimum concept

A leading power supply provider in Austria took on the project of monitoring water levels at a power plant in Montenegro, in two remote locations where no infrastructure is available for installation. On top of that, site visits could only occur...

Discharge Measurement Deep Within a Cave

Research is currently being conducted in the Hessenhau cave, located in southern Germany. The cave is the deepest known within the Swabian Alps at 144m (472 ft) and has a stream running through it that connects it to other caves within the area. ...

Buoy-based temperature profiling in the Bavarian Lakes

In summertime a temperature stratification occurs in deep lakes – the surface water is warm, but deep down the water is cold.  This has considerable influence on the nutrient balance and the biological habitat in these lakes. Due to generally higher...

landingpage-stromwater

Accurate flow and discharge measurement has been a core competency of OTT Hydromet since we created our first flow meter in 1875. Choose from a variety of either portable or stationary measurement options using different measurement...

OTT Hydromet Water Flow Solutions

Velocity measurements from up to nine cells are used, along with measured water level, to calculate discharge either internally in the OTT SLD or externally in a data logger.Equipped with two horizontal ultrasonic transducers "looking...

OTT Water Level Logger Used in Small Irrigation Channels in Valencia, Spain

The irrigation sector in the Valencia area was forced to start measuring the levels in their channels. For this a simple system was required and a very discrete installation needed due to high chances of vandalism and low budgets available from the...

Mine Water Treatment Relies on Borehole Loggers

For the last nine years, Severn Trent Services, has managed a contract for mine water treatment across the Coal Authority estate, including 73 mine water treatment schemes in England, Scotland and Wales. These schemes take the form of three types:...

New network of weather stations in Sheffield

OTT HydroMet is installing fifteen automatic weather stations as part of the University of Sheffield’s Urban Flows Observatory, which is led by the Departments of Civil and Structural Engineering, and Automatic Control and Systems Engineering (ACSE)....

65 new OTT ecoLog 500 stations in Denmark for a crop cutting research project

The associated sets of water level and water flow data, together with detailed records of the physical conditions, can form the basis for calculating the specific effects of the crop cutting on the water level and the manning number (expressing the...

Discharge measurement at the river "Große Roeder" in Saxony - Germany

Due to the seasonally strong weed growth and low flow during low water periods the measurement of water level and flow at the measurement site "Kleinraschuetz“ was rather distorted. It had to be corrected by putting in additional manpower for manual...

Precipitation measurement in high mountains - Aosta Valley

Precipitation monitoring in remote areas without infrastructure was thought to be impossible in Aosta Valley, Italy. All the more challenging was the task to install a measuring site on the Peak CIMO Blanche with its height of 3000 meters (just shy...

Water quality monitoring at the "Klingenberg" dam in Saxony, DE

The Klingenberg dam is located in the Free State of Saxony and serves the drinking water supply of Dresden and large parts of the former Weißeritzkreis area. Besides, it contributes to flood protection and, to a small extent, to energy generation. ...

OTT C31

The OTT C31 Universal Current Meter is designed for flow velocity measurements in combination with hand-held wading rods or cable suspended from a bridge or boat. Different accessories like sounding weights (middle pieces), sounding reels (winches),...

How to ensure real-time access to Antarctic tide data

The SATGN is maintained and operated by the National Oceanography Centre, which is the UK centre of excellence for sea level monitoring, coastal flood forecasting and the analysis of sea levels. It is the focus for marine water level research in the...

OTT Maximum Level Gauges

The OTT Maximum Level Gauge is a cost-effective measuring device that indicates the maximum water level by tidal waves or other level fluctuations over a color marking. It is based on the simple principle of color marking. The threshold level is used...

OTT C2

The OTT C2 small current meter for discharge measurements for shallow waters in small rivers, channels, laboratories and river models. Proven a thousand times to measure reliably flow velocities from 0.025 up to 5 m/s. Available for rod measurements...

Flood Water Protection in the City of Buenos Aires

The Arroyo Mendrano is the second largest channeled stream of water running through Buenos Aires. In case of heavy rainfalls it overflows its banks and causes considerable material damage. When the retention basin which had been especially built to...

Application Notes: OTT SVR 100 - Discharge measurement in Rosenheim

OTT Contact Gauges

OTT Contact Gauges are essential for manual measurements of depth to water, temperature, and conductivity in groundwater. The drum is held by a stable frame and is easy to carry. It is very smooth, so that you can effortlessly drain and haul the...

All-weather meteorological stations in the Carpathian Mountains - Hungary

For a development project on the Hungarian hydrometrical network operated by the Hungarian Meteorological Service (OMSZ), 141 new meteorological measuring stations were installed across the country. The all-weater climate stations have to provide...

OTT Water Quality Buoy

The OTT measuring buoy is specially designed for operation in combination with the HYDROLAB HL7 or HL4 multiparameter sondes. It is equipped with a data acquisition and remote data transmission unit as well as a mains-independent solar power supply....

OTT ecoLog 1000 Water Level Logger

The OTT ecoLog 1000 is a self-contained, robust surface and groundwater level logger for measuring water level, temperature, and conductivity. It provides reliable system up-time and accurate measurements while avoiding data gaps. It’s simple to...

OTT MetSystems

The rugged lockable control cabinet of the OTT MetSystems is designed for automatic meteorological stations. it is equipped with components for power supply as well as with the IP datalogger OTT netDL for saving and remotely transferring...

OTT Pluvio² S

The OTT Pluvio² S weighing precipitation gauge measures the intensity and cumulative precipitation in a broad measuring range from 0 to 3,000 mm/h.

The professional rain gauge is a further development of the tried-and-tested OTT Pluvio², with...

OTT SVR 100

OTT SVR 100 is a simple, non-contact, compact surface water velocity radar sensor. Designed for measuring flow in open channels and rivers where reliable velocity data is required continuously, during floods or periods of high concentrations of...

OTT PLS 500 - Pressure Level Sensor

Building on years of experience with the robust and accurate OTT PLS, the PLS 500 water level monitoring solution adds innovative metadata and internal sensors to remotely verify device performance providing peace of mind for long term deployment. 

OTT RLS - Radar Level Sensor

The OTT RLS is a non-contact radar level sensor with pulse radar technology. The OTT RLS offers a large measurement range with a small blanking distance and narrow beam width and it easily connects to most dataloggers. The RLS has extremely low power...

Legacy product - OTT ADC

The OTT Acoustic Digital Current meter (ADC) delivers consistently accurate results with the most advanced acoustic technology available for point velocity measurement. Designed specifically for in-stream velocity measurement, the ADC features a...

OTT Hydras 3 Basic

OTT Hydras 3 Basic communication software is a convenient and user-friendly solution for the configuration of OTT dataloggers, for downloading measured values using a notebook, and for automatic remote data collection via modem. Hydras 3 Basic is...

OTT Parsivel² - Laser Weather Sensor

The OTT Parsivel² is a modern laser disdrometer for comprehensive measurement of all precipitation types. The Parsivel² captures both the size and speed of falling particles, classifying them into one of 32 separate size and velocity classes. The raw...

OTT CBS - Compact Bubbler Sensor

The OTT CBS is a compact, accurate, and low power bubbler sensor for surface water level monitoring. The OTT CBS meets or exceeds USGS standards for accuracy, and will not drift over time. It features outputs for SDI-12 and 4...20 mA.

Contact-less and maintenance-free OTT SVR 100

OTT netDL Data Logger

The versatile OTT netDL 500 and 1000 data loggers were developed specifically for use in hydrology and meteorology stations. In addition to recording data, the data loggers are extremely low power and offer flexible data transfer options via the...

OTT Z400

The digital counter OTT Z400 is a time-saving device for flow measurements with hydrometric current meters. It automatically records the number of propeller revolutions by counting the impulses. Besides, it can output the velocity of flow immediately...

OTT Pluvio² L – Weighing Rain Gauge

The OTT Pluvio² L is an all-weather precipitation gauge that uses superior weight-based technology to measure the amount and intensity of rain, snow, and hail. Developed in conjunction with industry-leading meteorological services, the OTT Pluvio² L...

OTT MF pro - Water Flow Meter

The OTT MF Pro is a user-friendly, low maintenance electromagnetic current meter for cost-efficient in-stream discharge measurement.

The OTT MF pro saves time in the field by automatically calculating discharge and its electromagnetic sensor head is...

OTT HydroSystems

OTT HydroSystems offer a decisive price advantage compared to individual configured systems. The IP-enabled and highly energy-efficient datalogger OTT netDL is the core of the system. Several SDI-12 sensors may be connected to the rugged logger, as...

OTT PLS-C

The OTT PLS-C measures water conductivity, level, and temperature in both surface and groundwater applications with a robust ceramic pressure cell and 4-electrode conductivity cell. Its extremely low power consumption makes it ideal for long-term...

OTT Staff Level Gauges

Staff gauges from OTT as basic equipment for every level / discharge gauging station. Depending on whether the staff gauge is to be mounted vertically or on a slope, you can choose between vertical or inclined staff gauges. Furthermore the staff...

OTT PLS - Pressure Level Sensor

The OTT PLS measures water level, depth to water, or pressure by means of an integrated controller and ceramic pressure-measuring cell. Design features such as multiple communication outputs (SDI-12 or 4 ... 20 mA), stainless steel housing, and a...

HOTTline - availability of our customer service during the end-of-year and new year holidays 2019 / 2020

In the period of Christmas and New Year's Eve we are reachable by Hotline via the number 0831 5617 430 or via email to HydroService@otthydromet.com as follows: On Friday, December 13, 2019, we can be reached only in the morning at the...

Hydrolab HL4 Multiparameter Sonde

The Hydrolab HL4 is the next generation multiparameter water quality sonde from OTT Hydromet.  Know the instrument is working correctly and troubleshoot quickly. Streamline calibration tasks and produce valid, scientifically defensible conclusions.

...

Water Quality Monitoring and Weather Data at Pampulha Lake-Brasil

 In 2010, OTT Hydromet's partner in Brasil,  Hexis began working with CETEC. This resulted in the installation of a buoy, equipped with an automatic profiling system, in early 2013. The project’s objective is the continuous monitoring of the lake’s...

About us

OTT HydroMet - United Competencies OTT HydroMet provides valuable insights for experts in water and weather applications to help protect lives, the environment and infrastructure. We go beyond simply providing solutions by partnering...

OTT Hydras 3 net

The Hydras 3 Application Software is designed for data management in hydrometrical and meteorological monitoring networks. Hydras 3 offer a practical, user-friendly software structure for the collection, processing, interpretation, evaluation and...

OTT Hydras 3 net Hosted

Hydras 3 net Hosted is designed for data management in hydrometrical and meteorological monitoring networks. Hydras 3 net Hosted is a browser-based add-on to Hydras 3 with additional functionalities.

With Hydras 3 net Hosted, OTT HydroMet is...

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Legal information

LEGAL INFORMATION Provider data according to TDG/ MDStV OTT HydroMet GmbH Ludwigstr. 16 87437 Kempten Germany Tel.: + 49 - (0)831 5617 - 0 Fax: + 49 - (0)831 5617 - 209 euinfo@otthydromet.com Managing Director: Nadia Iannuzzi, Patrick...

About Hach Environmental

OTT Hydromet helps water resource professionals generate reliable data throughout the entire environmental water cycle.Our solutions focus around: Water Quality: Hydrolab multiparameter sondes for attended and unattended measurement of...

OTT TRH

The compact, long-term stability weather sensor OTT TRH is responsible for the measurement of relative humidity and temperature. In addition it can calculate the values for absolute humidity, dew point and mixing ratio and output these via the SDI-12...

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Quality standards:For more than 140 years, the name OTT has stood for outstanding, innovative, high-quality products. Our high quality standards are part of the corporate culture and are supported by several pillars.

Stormwater

Recent events involving heavy rainfall in regions away from known flood hotspots show that many cities, towns and villages are having to deal with situations that have never happened in recorded history. Flooding, highways and drainage...

Sea-Bird Scientific ECOs

The Environmental Characterization Optics (ECO) series of fluorometers delivers both high resolution and wide ranges. The ECO series excels in biological monitoring and dye trace studies. The potted optics block results in long term stability of the...

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Download Whitepaper

Thank you for your interest in the OTT White Paper "Trends in Nutrient Monitoring".

Watch Webinar recording

Thank you for your interest in our webinar about the OTT SVR 100 radar sensor – contact-free reliable and maintenance-free measurements. Enjoy watching the recording!

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Legal Information

Address: OTT Hydromet GmbH Ludwigstr. 16 87437 Kempten Tel.: + 49 - (0)831 5617 - 0 Fax: + 49 - (0)831 5617 - 209 euinfo@otthydromet.com Managing Directors: Nadia Iannuzzi, Patrick Gierman, Jeffrey Stock, Nina von Sivers  Commercial...

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OTT Hydromet Cloud

Hydromet Cloud provides secure real-time data access from almost anywhere in the world via HydrometCloud.com and the Hydromet Cloud Mobile App. This includes the backend infrastructure to receive, ingest, decode, process, display, and store...

Training

Training workshops are periodically offered around the US and are an excellent opportunity for hands-on instruction with Hydrolab and OTT products from certified professionals.Workshop topics include:     Applications and instrument...

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OTT Hydromet Water Quality Solutions

OTT Hydromet offers water quality monitoring solutions, services and support, from Hydrolab and Sea-Bird Scientific, designed for water quality professionals to obtain the reliable data and measurements they need, all within the...

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Service

Contact Service International Support: Phone +49 831 5617 430 E-Mail: caredesk@ott.com NAtechsupport@otthydromet.com (North America) Find your local contact

Bench Service Partnerships

Service contracts can reduce your instrument's lifetime repair costs by over 25%, decreasing your overall cost of ownership and increasing your return on investment. Plus, there are no hidden fees or additional repair expenses. This allows...

Rentals

Rental instruments are a perfect choice for short-term projects. All rental products are factory calibrated and tested before shipment. Weekly and monthly rates are available and the cost of the rental can be applied toward purchase of a...