Our products

The following pages shows our measuring instruments and system solutions for water level, discharge, precipitation and water quality measurement as well as complementary data loggers, operating and reading units and solutions for communication and data processing via OTT Software Hydras 3.

Waterquality Mulitparameter Sonde MS5

Hydrolab DS5

Waterquality Multiparameter sonde Hydrolab MS5

Hydrolab DS5 multiparameter water quality sonde offers the most Hydrolab sensors on a multiparameter platform for either profiling or unattended monitoring.

  • Attended, Unattended
  • Temperature, Conductivity, Depth, pH, Oxygen Reduction Potential (ORP), Dissolved Oxygen (LDO), Dissolved Oxygen (Clark Cell), Turbidity, Chlorophyll a, Blue-Green Algae, Rhodamine WT, Ammonium, Nitrate, Chloride, Total Dissolved Gas (TDG), Ambient Light
  • The Hydrolab sonde with the most available sensors
  • SDI-12, RS-485, RS-232, TTY
Waterquality Multparamteer sonde longterm deployment

Hydrolab DS5X

Hydrolab DS5X multiparameter water quality sonde offers the most Hydrolab sensors on a multiparameter platform especially designed for longterm unattended monitoring

  • Attended, Unattended
  • Temperature, Conductivity, Depth, pH, Oxygen Reduction Potential (ORP), Dissolved Oxygen (LDO), Dissolved Oxygen (Clark Cell), Turbidity, Chlorophyll a, Blue-Green Algae, Rhodamine WT, Ammonium, Nitrate, Chloride, Total Dissolved Gas (TDG), Ambient Light
  • The Hydrolab sonde with the most available sensors and a central cleaning system to minimize fouling
  • SDI-12, RS-485, RS-232, TTY
HL4 Multparameter Sonde

Hydrolab HL4

New Hydrolab Platform: Reliability, Ease-of-use, Metadata

The Hydrolab HL4 is the next generation multiparameter water quality instrument from OTT Hydromet. Its reliability, ease-of-use, and metadata produce water quality data you can trust.

  • Attended, Unattended
  • Temperature, Conductivity, Depth, pH, Dissolved Oxygen (LDO), Turbidity
  • The next generation multiparameter water quality instrument
  • SDI-12, RS-485, RS-232, TTY, USB
Waterquality Multiparameter sonde Hydrolab MS5

Hydrolab MS5

Multiparameter probe Hydrolab MS5 fits into a 2" well

The Hydrolab MS5 multiparameter water quality sonde offers a selection of Hydrolab sensors on a compact and lightweight multiprobe designed for either profiling or unattended monitoring.

  • Attended, Unattended
  • Temperature, Conductivity, Depth, pH ,ORP, Dissolved Oxygen (LDO, Clark cell), Turbidity, Chlorophyll a, Blue-Green Algae, Rhodamine WT, Ammonium, Nitrate, Chloride , TDG
  • The Hydrolab sonde profile for a smaller sensor payload that will fit in a two-inch well
  • SDI-12, RS-485, RS-232, TTY
Operating Software Hydrolab HL4 Metadata

Hydrolab Operating Software

PC-based application for interfacing with Hydrolab HL Series sondes, the Hydrolab Surveyor HL, and Hydrolab communications modules.

  • Hydrometry
  • Compatible with Microsoft Windows XP SP3, Vista, 7 (32 bit or 64bit) or 8
  • Easily switch between PC and handheld versions, self-monitoring system, semi-automated calibration
Quanta - muliparameter sonde for basic water quality spot measurements

Hydrolab Quanta

Mulitiparameter Sonde for basic water quality spot measurements - Quanta

For basic water quality spot measurements the Hydrolab Quanta multiparameter water quality sonde offers Hydrolab's sensor technology in a complete, cost-optimized system package that includes an easy-to-use handheld display.

  • Attended
  • Temperature, Conductivity, Depth, pH, Oxygen Reduction Potential (ORP), Dissolved Oxygen (Clark Cell), Turbidity
  • The Hydrolab sonde for basic spot measurements
  • SDI-12
Quanta Q For basic water quality parameter spot measurements in groundwater wells

Hydrolab Quanta G

For basic water quality parameter spot measurements in groundwater wells

For basic water quality parameter spot measurements in groundwater wells, the Quanta-G offers Hydrolas sensor technology in a complete stainless steel package that includes an easy-to-use, handheld display.

  • Attended
  • Temperature, Conductivity, Depth, pH, Oxygen Reduction Potential (ORP), Dissolved Oxygen (Clark Cell)
  • The Hydrolab sonde for basic spot measurements that will fit in a two-inch well
  • SDI-12
Acoustic Digital Current Meter OTT ADC

OTT ADC

OTT ADC Acoustic Digital Current meter for in-stream velocity measurement

The OTT Acoustic Digital Current meter (ADC) delivers consistently accurate results with the most advanced acoustic technology available for point velocity measurement.

  • Spot
  • Acoustic
  • Flow velocity, depth
  • Latest state of the art ultrasonic Doppler technology for high accurate velocity measurements. Maintenance free sensor with integrated depth measurement, graphical step by step user guidance and discharge calculation according to ISO 748 and USGS standard
  • -0.2 … 2.4 m/s
  • ± 1% of measured value ± 0.25 cm/s
Bubbler sensor for surface water level measurement OTT CBS

OTT CBS

Bubbler sensor for surface water level monitoring

The OTT CBS is a compact, accurate, and low power bubbler sensor for surface or groundwater level monitoring.

  • Surface water, Groundwater
  • Bubbler-in
  • Drift-free water level measurement - no pressure sensor or electronics in the water
  • 0 to 15 m or 0 to 30 m
  • ± 3 mm (high accuracy version); ± 5 mm (standard and 30 meter versions)
  • No
  • SDI-12, RS-485 (using SDI-12), or 4 ...20 mA
Contact gauge OTT KL010

OTT Contact Gauges

OTT Contact Gauges for measurements of depth to water, termperature and conductivity

OTT Contact Gauges are essential for manual water level measurements in groundwater. For measuring depth to water, temperature, and conductivity – depending on the variant.

  • Measuring tape lengths KL010: 15 ... 750 m; KL010 TM: 25 ... 500 m; KL010 TCM 30 ... 500 m
  • Groundwater
  • Contact gauge
  • Water level / Distance to water, Temperature, Conductivity
  • Manual water level, temperature and/or conductivity measurement
With integrated sensor and datalogger for measurement of water level, temperature, and conductivity OTT CTD

OTT CTD

Instrument with integrated sensor and datalogger for measurement of water level, temperature, and conductivity

The OTT CTD is an integrated sensor and datalogger for measurement of water level, temperature, and conductivity in groundwater and surface water applications.

  • Surface water, Groundwater
  • Vented pressure cell and 4-electrode graphite conductivity cell
  • Waterlevel, Temperature, Conductivity
  • Measures and stores water level, temperature, and conductivity data
  • Water level: 0 … 4, 10, 20, 40, and 100 m Conductivity: 0.001…2.000 mS/cm, 0.10…100.00 mS/cm
  • ±0,05 % FS
  • Yes
Groundwater Monitoring OTT ecoLog 500

OTT ecoLog 500

Self-contained level sensor with remote data transmission

The OTT ecoLOG 500 is a self-contained water level instrument offering flexible remote data options and unequaled performance for the price.

  • Surface water, Groundwater
  • Vented pressure cell
  • Waterlevel/Pressure, Water temperature
  • Measures, stores, and transmits water level and temperature data
  • 0 … 4, 10, 20, 40, and 100 m
  • ± 0.05% FS
  • Yes
CTD Groundwater Monitoring OTT ecoLog 800

OTT ecoLog 800

Self-contained system remote data transmission for measurement of water level, temperature, and conductivity in groundwater and surface water applications

The OTT ecoLog 800 is a self-contained system for measurement of water level, temperature, and conductivity in groundwater and surface water applications.

  • Surface water, Groundwater
  • Vented pressure cell and 4-electrode graphite conductivity cell
  • Waterlevel/Pressure, Water temperature, Conductivity
  • Measures, stores, and transmits water level and temperature data
  • 0 … 4, 10, 20, 40, and 100 m
  • ± 0.05% FS
  • Yes
Monitoring network management software OTT Hydras 3

OTT Hydras 3

Monitoring network management software OTT Hydras 3

Monitoring network management software OTT Hydras 3 for professional data management, evaluation, processing and alarm management.

  • Hydrometry, Meteorology and Environmental Protection
  • Microsoft Windows 95/98/2000, Windows NT 4.0, Windows XP, Windows Vista, Windows 7
  • Graphical editor, Map display, Alarm management, Parametrization and data reading of stations, Autoimport of data, Autoexport, Displaying data
Hydras 3 Basic - Communication software

OTT Hydras 3 Basic

OTT Hydras 3 Basic communication software

OTT Hydras 3 Basic software simplifies the management of dataloggers, stations and small measuring networks.

  • Hydrometry, Meteorology and Environmental Protection
  • Microsoft Windows 95/98/2000, Windows NT 4.0, Windows XP, Windows Vista, Windows 7
  • Graphical editor, Parametrization and data reading of stations, Autoimport of data, Displaying data
Hydrological Station - Gauging Station OTT HydroSystems

OTT HydroSystems

Stand-alone compact systems for hydrological applicationsOTT HydroSystems

OTT HydroSystems allow hydrological measuring stations to be set up using only a few manual operations. The completely fitted system cabinets include components for power supply and everything that is needed for storing and transmitting measured data.

  • Turn-key solutions for stand-alone measuring stations
  • Gauging station, Pole mount
  • Battery, Solar
  • Cellular, Satellite
Electro magnetic current meter OTT MFpro

OTT MF pro

Electromagnetic Current Meter

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

  • Spot
  • Electro-magnetic
  • Flow velocity and water depth
  • Low maintenance magnetic - inductive probe with level measurement for reliable flow measurements. Works well in low flow and turbulent conditions, cross - sections with weed growth and pollution. Applicable in streams and conduits. Provides colored graphi
  • 0 … 6 m/s
  • ± 2% of measured value ± 0.015 m/s ( 0 … 3 m/s ) and ± 4% of measured value ± 0.015 m/s ( 3 … 5 m/s )
Multichannel IP datalogger OTT netDL

OTT netDL

IP data logger OTT netDL

The versatile OTT netDL 500 and 1000 dataloggers were developed specifically for use in hydrology and meteorology stations. In addition to recording data, the loggers are extremely low power and offer flexible data transfer options via the internet and mobile networks, providing a logging and telemetry solution for every project.

  • USB-Host, USB-Device, RS-232, Satellite, Cellular, Datalogger, Industrial Communication
  • High data availability due to large memory and various communication possibilities, redundant communication, communication via TCP/IP Integrated Web Server, Ultra low power design Industrial design for harsh environment, industrial communication
  • Yes
  • SDI-12, RS-485 (SDI-12), Modbus RTU, analogue-in (voltage and current), Impulse Input, Status Input
Groundwater Monitoring Waterlevel Temerpature OTT Orpheus Mini

OTT Orpheus Mini

Instrument with integrated pressure sensor and datalogger for level measurement in surface and groundwater applications

The OTT Orpheus Mini is an integrated pressure sensor and datalogger for level measurement in surface and groundwater applications.

  • Surface water, Groundwater
  • Vented pressure cell
  • Waterlevel/Pressure, Water temperature
  • Measures and stores water level and temperature data
  • 0 … 4, 10, 20, 40, and 100 m
  • ± 0.05% FS
  • Yes
Present weather sensor Disdrometer OTT Parsivel²

OTT Parsivel²

OTT Parsivel² is a laser optical present weather disdrometer

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.

  • Precipitation type, intensity, drop size distribution, radar reflectivity
  • Laser optical
  • Simultaneous measurement of 32 classes for particle sizes and velocities
  • SDI-12 / RS-485, pulse
Pressure Probe Water level Temerature Ceramic cell OTT PLS

OTT PLS

Robust ceramic pressure cell

The OTT PLS, SDI-12 or 4 ... 20 mA pressure probe, measures water level, depth to water, or pressure using an integrated controller and ceramic pressure-measuring cell.

  • Surface water, Groundwater
  • Vented pressure cell
  • Water level, Pressure, Temperature
  • Water level and temperature measurement - for use with external data logger
  • 0 … 4, 10, 20, 40, and 100 m
  • ± 0.05% FS
  • Yes
  • SDI-12, RS-485 (using SDI-12), or 4 … 20 mA
Allweather precipitation gauge OTT Pluvio²

OTT Pluvio²

All-weather precipitation gauge using weighing principle

The OTT Pluvio² is an all-weather precipitation gauge that uses superior weight-based technology to measure the amount and intensity of rain, snow, and hail.

  • Precipitation Intensity, cumulative, bucket content in real time and non real time
  • Weighing principle
  • All weather precipitation gauge without moving parts according WMO guide line No8
  • SDI-12 / RS-485, pulse
Impuls radar OTT RLS

OTT RLS

Low power non-contact radar level sensor

The OTT RLS is a non-contact radar level sensor with pulse radar technology that is ideal for monitoring in remote or hard to reach locations.

  • Surface water
  • Water level / distance to water
  • Non-contact pulse radar
  • Measures water level or depth to water from a bridge, pier or mounting arm
  • 0.8 … 35 m
  • 0.8 … 2 m: ± 10 mm; 2 … 30 m: ± 3 mm; 30 … 35 m: ± 10 mm
  • No
  • SDI-12, RS-485 (using SDI-12), or 4 ...20 mA
Side Looking Doppler System

OTT SLD

Side Looking Doppler For Continuous Water Velocity and Discharge Measurement

The OTT SLD uses acoustic Doppler technology for continuous measurement of water velocity and level in streams, rivers, and canals.

  • Fixed installation
  • Acoustic
  • Flow velocity
  • Side-Looking-Doppler for continuous discharge measurement in rivers and open channels. Discharge calculation based on velocity - index - method. Integrated vessel filter algorithm, Modbus interface and output of total volume of flow (max. interval 1 day).
  • ± 10 m/s
  • ± 1 % of measured value ± 0.5 cm/s
Waterlevel float operated shaft encoder with datalogger OTT Thalimedes

OTT Thalimedes

Float-operated shaft encoder water level sensor with integrated logger

The OTT Thalimedes float-operated shaft encoder level sensor and logger provides proven water level measurements in continuous, unattended monitoring in ground and surface water applications.

  • Surface water, Groundwater
  • Float-operated Shaft Encoder
  • Water level
  • Measures and stores water level data
  • ± 199.99 m, or ± 19.999 m
  • ± 0.002 m, ± 1 Digit
  • Yes
Seabird Scientific Water Quality

SBC Cycle-P

Seabird Scientific Water Quality

The Sea-Bird Coastal Cycle P with technology by WET Labs is a single analyte chemical sensor designed specifically for long-term monitoring in biologically rich water.

  • Unattended
  • Phosphate
  • Long-term in-situ phosphate measurement in biologically rich waters
  • SDI-12, RS-232
Seabird Scientific HydroCat water quality

SBC HydroCAT

sensors measure conductivity, temperature, pressure and optical dissolved oxygen - Seabird Scientific HydroCat

The Sea-Bird Coastal HydroCAT with technology by Sea-Bird Electronics (SBE) is ideally suited for extended deployments in remote, biologically rich environments.

  • Unattended
  • Temperature, Pressure, Dissolved Oxygen, Conductivity
  • Ideally suited for extended deployments in remote, biologically rich environments
  • SDI-12, RS-232, RS-485 (optional)
industry-leading nitrate measurement SUNA

SBC SUNA

industry-leading nitrate measurement Seabird Scientific SUNA

The Sea-Bird Coastal SUNA V2 UV nitrate sensor with technology by Satlantic is the ultimate chemical-free solution for autonomous monitoring in estuarine and freshwater environments.

  • Attended, Unattended
  • Nitrate
  • High-accuracy, chemical-free, in-situ nitrate measurement
  • SDI-12, RS-232
superior long-term monitoring water quality SBC WQM

SBC WQM

superior long-term monitoring water quality SBC WQM

The Sea-Bird Coastal WQM X with technology by Sea-Bird Electronics and WET Labs is designed specifically for long-term moored operations in biologically rich water.

  • Unattended
  • Conductivity, pressure, chlorophyll, temperature, dissolved oxygen, turbidity
  • Designed specifically for extended deployment in biologically rich waters
  • RS-232