toggle menu

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.

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
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
Lightweight multi-probe water quality testing instrument

Hydrolab MS5 - Mulitparameter Mini Sonde

Lightweight multi-probe with four ports available for water quality sensors

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
Long term water quality multi-meter

Hydrolab DS5 - Multiparameter Data Sonde

Water Quality Sonde with Flexible Sensor Payload

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
Seabird Scientific HydroCat water quality

Sea-Bird Scientific HydroCAT

For longterm water quality monitoring with proven anti-fouling technology

The Sea-Bird Scientific 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)
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
superior long-term monitoring water quality SBC WQM

Sea-Bird Scientific WQM

Water Quality Monitor for Maximum Deployment Times

The Sea-Bird Scientific 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
Water Quality Solutions Overview Video
Nutrient Monitoring App Note
In-Situ Nutrient Monitoring Article
Chester River Nutrient Monitoring Article
Back to overview