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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.

OTT ecoN - Low maintenance UV nitrate sensor

OTT ecoN

Low maintenance UV nitrate sensor

Advancing UV nitrate sensors, the OTT ecoN combines field reliability with a user friendly, low operational cost, future ready platform. It uses optical UV absorption technology for the determination of nitrate concentrations in fresh surface and groundwater.

  • Attended Unattended
  • Ethernet Data Logger RS-485 (Modbus RTU)
  • Smart optical technology, access with web browser, optional anti-fouling wiper, calibration verification, fexible application options
  • No
  • Ethernet (TCP/IP), RS-485 (Modbus RTU), SDI-12 (via converter)
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, Ammonium, Nitrate, Chloride
  • 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, Ammonium, Nitrate, Chloride
  • 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
Dissolved Oxygen with HACH LDO sensor

Hach LDO® Dissolved Oxygen Sensor

Since 2002, Hach has established itself as the premier provider of luminescent dissolved oxygen (LDO) technology. Only Hydrolab multiparameter sondes feature Hach LDO technology – designed, manufactured, and supported by Hach in Loveland, Colorado. Now in its second generation, the Hach LDO sensor for Hydrolab sondes is better than ever.

Water Quality Solutions Overview Video
In-Situ Nutrient Monitoring Article
Chester River Nutrient Monitoring Article
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