Water Quality

Industry-leading smart sensors

T-Node FR Temperature Sensor
The NexSens T-Node FR Temperature Sensor provides high precision measurements in a connectorized and addressable architecture for water quality profiling.
TS210 Temperature String
The NexSens TS210 Temperature String provides high precision measurements for profiling in lakes, streams, and coastal waters.
In-Situ RDO BLUE Optical Dissolved Oxygen Sensor
RDO Blue uses In-Situ’s patented Optical Rugged Dissolved Oxygen technology, an EPA-approved dissolved oxygen measurement method ideal for measuring DO and temperature in even the harshest environments.
LDI ALGAE ROW Non-Contact Chlorophyll-a Detector
The ALGAE ROW is a non-contact instrument that monitors the concentration of chlorophyll-a in real time for harmful algal bloom (HAB) detection.
LDI ROW Aluminum Non-Contact Oil Detector
The LDI ROW Aluminum Oil Detector is an autonomous non-contact sensor for the detection of oil on water in industrial and environmental applications.
LDI ROW ATEX EXD Non-Contact Oil Detectors
The ROW ATEX EXD is an autonomous non-contact sensor for the detection of oil on water in hazardous areas including Zone 1 designations.
LDI ROW Stainless Steel Non-Contact Oil Detectors
The ROW Stainless Steel is an autonomous non-contact sensor for the detection of oil on water in corrosive conditions including oil terminals and marine environments.
LI-COR LI-192 Underwater PAR Sensor
The LI-COR LI-192 Underwater PAR Sensor accurately measures photosynthetically active radiation (PAR) in freshwater or saltwater environments.
LI-COR LI-193 Underwater Spherical PAR Sensor
The LI-COR LI-193 Underwater Spherical Quantum sensor accurately measures photon flux from all directions and gives an added dimension to underwater PAR measurements.
Pro-Oceanus Solu-Blu Dissolved CH4 Probe
The Solu-Blu dissolved CH4 probe can be used for long-term continuous in-situ monitoring to provide dissolved methane data.
Pro-Oceanus Solu-Blu Dissolved CO2 Probe
The Solu-Blu dissolved CO2 probe can be used for long-term continuous in-situ monitoring to provide reliable free dissolved carbon dioxide data.
Pro-Oceanus Solu-Blu TDG Probe
The Solu-Blu total dissolved gas (TDG) probe can be used for long-term continuous in-situ monitoring to provide reliable dissolved gas pressure measurements.
Proteus Multi-Parameter Water Quality Sensors
The Proteus is a multi-parameter sensor platform for accurate and reliable measurements of BOD, COD, TOC and Coliforms (total, E. coli or fecal) in temporary and permanent applications.
Sea-Bird Scientific ECO PAR Sensor
The Sea-Bird Scientific ECO PAR sensor provides highly accurate measurements of photosynthetically available radiation (400–700 nm) in all aquatic environments.
Sea-Bird Scientific HydroCAT CTD
The Sea-Bird Scientific HydroCAT CTD is ideally suited for extended deployments in remote, biologically rich environments.
Seametrics CT2X Conductivity Loggers
The Seametrics CT2X is a conductivity and temperature sensor with built-in data logging and optional water level sensor.
Seametrics DO2 Dissolved Oxygen Logger
The Seametrics DO2 is an optical dissolved oxygen sensor with built-in data logger for unattended DO monitoring applications.
Seametrics Multi-Parameter Water Quality Loggers
The Seametrics Multi-Parameter Logger is available in 5 configurations to measure combinations of water level, conductivity, pH, ORP, dissolved oxygen, turbidity, and temperature.
Seametrics TempHion Bromide Logger
The Seametrics TempHion Bromide Logger is a submersible water quality sensor and data logger that includes a bromide sensing element and a thermistor-based temperature element.
Seametrics TempHion pH/ORP Loggers
The Seametrics TempHion is a submersible water quality sensor and data logger that includes a pH/ORP element and a thermistor-based temperature element.
Seametrics Turbo Turbidity Loggers
The Seametrics Turbo turbidity logger measures a wide range of NTUs, making it a versatile device capable of deployment at many different sites.
Sequoia LISST-ABS Acoustic Sediment Sensor
The Sequoia LISST-ABS Acoustic Sediment Sensor is a low-cost sensor designed specifically for measuring suspended sediment concentration at a single point.
Sequoia LISST-AOBS Super-Turbidity Sensor
The Sequoia LISST-AOBS is a simple, low-cost Super-Turbidity sensor to measure suspended sediment concentration (SSC; mg/l) and turbitity (V).
TriOS NICO plus UV Nitrate Sensor
The new NICO plus has been expanded to not only measure nitrate, but also UVT254, UVT254n, SAK254, CSBeq, BSBeq, TOCeq, DOCeq, turbidity and TSSeq.
TriOS NICO UV Nitrate Sensor
The TriOS NICO is a low-cost UV photometer for online measurement of nitrate in lakes/rivers, drinking water, and wastewater applications.
TriOS OPUS UV Spectral Sensor
OPUS is a full spectrum sensor that can deliver reliable readings for nitrate, nitrite, COD, BOD, DOC, TOC, and a number of other parameters.
Turner Designs C3 Submersible Fluorometer
The Turner Designs C3 Submersible Fluorometer is designed to incorporate up to three optical sensors ranging from the ultraviolet to the infrared spectrum.
Turner Designs C6P Submersible Fluorometer
The Turner Designs C6P Submersible Fluorometer can be configured with up to six optical sensors ranging from the deep ultraviolet to the infrared spectrum.
Turner Designs Cyclops-7F Submersible Sensors
The Turner Designs Cyclops-7F submersible sensor is a high performance and compact fluorometer designed for integration into any platform that supplies power and data logging.
YSI EXO1 Multi-Parameter Water Quality Sonde
The YSI EXO1 sonde includes four sensor ports (sensors sold separately) with internal data logging and battery power.
YSI EXO1s Multi-Parameter Water Quality Sonde
EXO1s is a compact, batteryless sonde that comes with the same capabilities as the EXO1, and is ideal for specialized applications where external power is supplied.
YSI EXO2 Multi-Parameter Water Quality Sonde
The YSI EXO2 sonde includes six sensor ports (sensors sold separately) and a central anti-fouling wiper option.
YSI EXO2s Multi-Parameter Water Quality Sonde
The YSI EXO2s is a compact, batteryless sonde that comes with the same capabilities as the EXO2, and is ideal for specialized applications where external power is supplied.
YSI EXO3 Multi-Parameter Water Quality Sonde
The YSI EXO3 is purpose-built for monitoring major water quality parameters, including pH, conductivity, temperature, turbidity and dissolved oxygen.
YSI EXO3s Multi-Parameter Water Quality Sonde
The YSI EXO3s is a compact, batteryless sonde that comes with the same capabilities as the EXO3, and is ideal for specialized applications where external power is supplied.
YSI ODO RTU Optical Dissolved Oxygen Sensors
The YSI ODO RTU utilizes the most advanced DO technology with RS-485 Modbus output for aquaculture, hydroelectric, and many more dissolved oxygen monitoring applications.
YSI ProSwap Logger
Designed for use with any single ProDSS Digital Smart Sensor, ProSwap Logger is cost-effective and customizable water quality and level monitoring solution.