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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 nutrients has grown in importance as it has come to the forefront in regulatory compliance of water quality in many regions.

Sea-Bird Scientific offers several solutions for long-term unattended measurement of nitrate and phosphate in real-time, while Hydrolab multiparameter sondes have several sensor options for nutrient measurement as well.

New water quality sonde platform: ease of use, meta-data, reliability

Hydrolab HL4 Multiparameter Sonde

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

The Hydrolab HL4 is the next generation multiparameter water quality sonde 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, ORP, Clorophyll a, Blue-green algae, Rhodamine
  • The next generation multiparameter water quality instrument
  • SDI-12, RS-485, RS-232, TTY, USB
Long term water qualitymeasurement

Hydrolab HL7 - Multiparameter Sonde

Water Quality Measurement Instrument

The HYDROLAB HL7 multiparameter sonde offers a versatile, durable and practical solution for long-term continuous and profile monitoring for both simple and complex deployments.

  • Attended Unattended
  • Temperature, Conductivity, Depth, pH, Dissolved Oxygen (LDO), Turbidity, ORP, Blue-Green Algae, Chlorophyll a
  • The next generation multiparameter water quality instrument
  • SDI-12, RS-485, RS-232, TTY, USB
Buoy Solution to measure and transmit water quality parameters

OTT Water Quality Buoy

Buoy used to measure water quality parameters

OTT Water Quality monitoring buoy with remote data transmission for rivers, lakes and near coastal applications. Designed to operate with HYDROLAB HL7 or HL4 multiparameter sondes.

  • Stand-alone water quality measurement buoy solution
  • Temperature, Conductivity, Depth, pH, Dissolved Oxygen (LDO), Turbidity, ORP, Blue-Green Algae, Chlorophyll a
  • Cellular
Sea-Bird Scientific Suna

Sea-Bird Scientific SUNA Optical Nitrate Sensor

High accuracy in-situ nitrate measurement

The Sea-Bird Scientific 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
Sea-Bird Scientific hydrocat water quality sonde

Sea-Bird Scientific HydroCAT-EP

Long-term Deployment Water Quality Sonde

The newest member of the HydroCAT family of water quality Sondes can also measure pH, turbidity and chlorophyll.

  • Unattended
  • Temperature, Pressure, Dissolved Oxygen, Conductivity, pH, Turbidity and Chlorophyll
  • Designed specifically for long-term deployments of up to three months
  • SDI-12, RS232
Seabird Scientific Water Quality

Sea-Bird Scientific HydroCycle-PO4 Phosphate Sensor

High accuracy in-situ phosphate measurement

Sea-Bird Scientific’s HydroCycle-PO4 is a wet chemical sensor engineered for environmental monitoring.

  • Unattended
  • Phosphate
  • 5-month reagent life, 2.3- μgP/L detection limit, click-in reagent cartridges, on-board NIST standard, >1500 samples/service, factory-calibrated
  • SDI-12
Water Quality Solutions Overview Video
In-Situ Nutrient Monitoring Article
Chester River Nutrient Monitoring Article
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