OTT HydroMet
About
OTT HydroMet, headquartered in Germany with a heritage dating to 1873 and now part of the Veralto corporation alongside In-Situ and Sea-Bird Scientific, manufactures hydrological and meteorological monitoring instruments and integrated system solutions. The company provides end-to-end monitoring across water level, water quality, water flow, data logging, telemetry, software, and turn-key station systems. The water level portfolio includes the RLS 500 radar sensor using 80 GHz FMCW technology with 2 mm accuracy meeting USGS OSW requirements; the PLS and PLS 500 vented ceramic pressure sensors with 0.05% FS accuracy; the PLS-C combining level and four-electrode conductivity measurement; the CBS compact bubbler system with 3-5 mm accuracy and no electronics in water; and the ecoLog 1000 all-in-one logger with integrated 4G/LTE-M modem and 10+ year lithium battery. Water quality is addressed through the Hydrolab HL4 and HL7 multiparameter sondes measuring up to 17 parameters including LDO dissolved oxygen, turbidity, chlorophyll, blue-green algae, ammonium, nitrate, and chloride, plus Sea-Bird Scientific's HydroCAT, HydroCAT-EP, WQM, and SUNA V2 nitrate sensor. Flow measurement spans the MF pro electromagnetic handheld flowmeter, SVR 100 surface velocity radar, and C2/C31 mechanical current meters. Data infrastructure includes the netDL 500/1000 logger, Sutron SatLink 3 satellite transmitter, and XLink 100/500 cellular/Iridium logger. Meteorological instruments include the Pluvio2 weighing precipitation gauges, Parsivel2 laser disdrometer, Lufft WS100 weather sensor, and Ventus ultrasonic anemometer. Software platforms Hydras 3, Hydromet Cloud, and HydroSight provide data management, cloud visualization, and camera-based video analytics respectively. OTT serves municipal, state, and federal agencies, water resource managers, and consulting engineers in flood monitoring, groundwater, surface water, coastal, and nutrient monitoring applications.
Key Products
Non-contact 80 GHz FMCW radar level sensor measuring water level to 30 meters with 2 mm accuracy, meeting USGS OSW requirements, with SDI-12 and Modbus RTU outputs.
Vented ceramic pressure cell sensor for water level, pressure, and temperature measurement with 0.05% FS accuracy, available in 4m to 100m ranges.
Enhanced vented ceramic pressure sensor with position and humidity sensors meeting USGS OSW specifications for high-accuracy water level monitoring.
Vented pressure sensor combining water level measurement with 4-electrode conductivity measurement for simultaneous level and water quality monitoring.
Drift-free bubbler system for water level measurement with no electronics in water, available in 0-15m and 0-30m ranges with 3-5mm accuracy.
All-in-one water level logger with integrated 4G/LTE-M modem, BLE, 10+ year battery, and 1 million value memory for autonomous remote monitoring.
Manual measuring tapes with conductivity detection for depth-to-water measurement in wells, available in 15m to 750m tape lengths.
Visual reference gauges installed on-site for manual water level observation with 2 cm accuracy.
Visual color tape gauges recording maximum water level reached after flood or tidal events.
Next-generation multiparameter water quality sonde measuring up to 17 parameters including temperature, conductivity, depth, pH, DO, turbidity, ORP, chlorophyll, blue-green algae, ammonium, and nitrate.
Long-term continuous and profile monitoring sonde with durable construction for extended deployment measuring temperature, conductivity, depth, pH, DO, turbidity, ORP, and nutrients.
Water quality sonde for extended deployments measuring temperature, pressure, dissolved oxygen, and conductivity with anti-fouling technology.
Extended-parameter water quality sonde for long-term deployments up to 3 months measuring temperature, pressure, DO, conductivity, pH, turbidity, and chlorophyll.
Optical in-situ nitrate sensor using UV absorption for chemical-free nitrate measurement with no reagents required.
Electromagnetic handheld flow meter for measuring discharge in open channels, with automatic calculation, working in low flow, turbulent, and weedy conditions.
Non-contact 24 GHz K-band radar measuring surface water velocity from 0.08 to 15 m/s with integrated vibration and tilt sensors for QA/QC.
Compact mechanical current meter for flow velocity measurement in shallow waters, small rivers, channels, and laboratories from 0.025 to 5 m/s.
Universal mechanical current meter for rod-mounted or cable-suspended velocity measurement in rivers and open waterways from 0.025 to 10 m/s.
Multi-channel data logger supporting SDI-12, RS-485, Modbus RTU, analog, impulse, and status inputs with up to 120 channels, integrated web server, and 1.1M value memory.
GOES/Meteosat satellite data transmitter with cellular and WiFi communication, supporting 32 sensor channels with SDI-12, RS-232, analog, and digital inputs.
Wi-Fi-enabled data logger with Iridium or cellular telemetry, Python scripting capability (500 model), and up to 1 million readings storage.
Weighing-principle all-weather precipitation gauge measuring rain, snow, and hail amount and intensity, WMO compliant, with SDI-12/RS-485 output.
Laser optical precipitation sensor classifying 32 size and velocity classes for precipitation type, intensity, and drop size distribution.
Maintenance-free 24 GHz Doppler radar weather sensor detecting precipitation type and intensity including rain, snow, sleet, freezing rain, and hail.
Ultrasonic wind speed and direction sensor with virtual temperature and barometric pressure, no moving parts, ice-free operation.
Air temperature and relative humidity sensor using PT1000 and capacitive elements with SDI-12 output for meteorological monitoring.
Camera-based video analytics system providing real-time water level and surface velocity measurement with visual verification of monitoring data.
Integrated turn-key flood monitoring system combining RLS 500 radar sensor with SensorLink 1000 telemetry for real-time flood warning.
Pre-built station cabinets with power supply, data storage, and transmission (cellular, satellite GOES/Meteosat) for rapid deployment hydrological monitoring.
Pre-configured weather station cabinets integrating all meteorological sensors and data collection components for automatic stations.
Windows-based software for datalogger parameterization, data reading, and network management with alarm and map display capabilities.
Cloud-based data visualization platform with real-time data access, threshold alerting, and mobile app for iOS and Android.
Windows-based discharge calculation and system calibration software for stream gauging and flow measurement.
Service Area
National coverage
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