• Self Recording UW Data Loggers (CTD, CTDSV, CT, TD, DO2, Chl-a)
• Nitrates, Phosphates, Silicates, Iron, Alkalinity, pH sensors and eDNA samplers
• Fluorimeters and Bioluminometers

Self Recording UW Data Loggers (CTD, CTDSV, CT, TD, DO2, Chl-a)

WiSens CTD: Conductivity, Temperature, and Depth.

nke - France

WiSens CTD measures and records conductivity, temperature and depth.
- 300m WD rated.
- Compact and easy to use.
- Fast wireless configuration and data collection thanks to the Wi-Fi communication.
- Rugged and reliable.
- Optimal protection of the sensor.
- Lithium batteries for long-term use (up to several years).
- Copper-based anti-fouling replaceable sensor protection.

WiSens CTDSV: Conductivity, Temperature, Depth, Salinity and Sound Velocity

nke - France

The WiSens CTDSV data logger measures and records conductivity, pressure and temperature. Salinity and sound velocity are deducted by calculation.
- 300m WD rated.
- Fast wireless configuration and data collection thanks to the Wi-Fi communication.
- Optimal protection of the sensor.
- Aerotransportable lithium batteries for long-term use (up to several years).
- Copper-based anti-fouling replaceable sensor protection.

CT Sensor – Conductivity and Temperature

nke - France

The sensor combines two parameters: conductivity and temperature measurements. The conductivity measurement is carried out by a 4 carbon electrodes cell. The advantage of the 4-electrode measuring cell is its relative insensitivity to parasitic resistances, dirt or polarization.

Wisense DO2: DO2, Temperature and Pressure

nke - France

The WiSens DO measures and records temperature, pressure and dissolved oxygen (oxygen concentration and oxygen saturation). It has been designed to be used up to three different depths: 30 meters, 300 meters and 1.000 meters.

 Transmission and configuration of data via WiFi
 Compatible IOS, MAC OS, Windows, Android
 Simple maintenance of sensors
 Optimum protection of the sensors
 Lithium batteries for long-term use (up to several years)

Wsens TBD: Turbidity, Temperature and Pressure

nke - France

WiSens TBD measures and records temperature, depth and turbidity up to 4 000 FNU down to 300 meters.

Fast wireless configuration and data collection thanks to the Wi-Fi communication
Compatible IOS, MAC OS, Windows, Android
Easy maintenance
Optimale protection of the sensor
Lithium batteries for long-term use (up to several years)
Optional external automated wiper brush

WiSens Chloro A: chlorophylle A

nke - France

The WiSens Chloro A datalogger measures and records temperature, pressure and chlorophyll A. It can be used at 30 meters, 300 meters and 1,000 meters deep.

WiSens TD: Temperature and pressure

nke - France

WiSens TD measures and records temperature and pressure. It has been designed to be used up to three different depths: 30 meters, 300 meters, 1,000 meters.

Nitrates, Phosphates, Silicates, Iron, Alkalinity, pH sensors and eDNA samplers

Nitrate & Nitrite Sensor

Clear Water Sensors - UK

Based on advanced lab-on-chip technology, this miniaturised microfluidic nitrate + nitrite submersible sensor performs lab-grade nitrate analysis in-situ wherever you need it. It can also be configured to just measure nitrite. Max operating depth: 6000m!

Silicate microfluidic sensor

Clear Water Sensors - UK

Based on advanced lab-on-chip technology, this submersible miniaturised microfluidic silicate sensor performs lab-grade measurements in-situ, wherever you need them. Max operating depth: 6000m!

Iron microfluidic sensor

Clear Water Sensors - UK

Dissolved Iron Analyser
Based on advanced lab-on-chip technology, this system performs high-quality dissolved iron measurements using the colourimetric ferrozine method. It can be programmed to measure both Iron II and Iron III (via onboard acidification and reduction processes). The system is robust and fully submersible to 6000m deep. Key applications include scientific (e.g. iron cycling in rivers, coastal and hydrothermal areas) and industrial (e.g. corrosion and process monitoring).

pH microfluidic sensor

Clear Water Sensors - UK

Based on advanced lab-on-chip technology, our precision spectrophotometric pH submersible sensor performs highly accurate and stable pH measurements from coastal surface waters to the bottom of the ocean. Key applications include ocean acidification studies and coastal pH measurements. Max operating depth: 6000m

eDNA SAMPLER Environmental DNA Sampling

DOT - Darmouth Ocean Technologies - Canada

Autonomous eDNA Multi-sampling for the Detection of Biological Genomic Signatures in Water

Automatic operation according to a preconfigured mission profile
Micro-fluidic architecture reduces reagent usage and facilitates storage of waste products for later disposal
Sample preservation via RNAlater enables long-term, unsupervised deployment
Customize based on the filter material needed (ie. PC, PVDF)
Optional: Integrated 4-channel fluorometer (Chl-a, PC, PE, FDOM)
Compact design allows for deployment from a variety of vessels and platforms

Alkalinity Sensor

DOT - Darmouth Ocean Technologies - Canada

Dartmouth Ocean Technologies introduces a miniaturized, autonomous alkalinity sensor for marine environments that will enable Ocean Alkalinity Enhancement (OAE) and monitor the ocean’s buffering capacity.

Alkalinity Sensor at a Glance:
Accurate measurement of microfluidic alkalinity over the range 1500-2500 µmol / kg
Measurement calibrations against certified reference materials
Programmable sample rate and concentration range
Technology Flexibility: An excellent contender for towed systems, AUV's, gliders, ROVs, Voluntary Observation Ships, buoys, and profiling floats

Features:
Rigid Reagent Housing
Self-Contained
275 samples / 25 standards per reagent load*
Programmable sample interval & range
Easy transport and deployment
Flexible mounting configurations

Phosphate Sensor

DOT - Darmouth Ocean Technologies - Canada

The A1000-200 Phosphate Sensor is an Ortho Phosphate sensor “Inlaid Optical Cell Technology™". This innovative microfluidic wet-chemistry sensor provides real-time measurement of phosphate concentration. The sensor is self-powered and self-logging. Deployment duration is a function of logging rates and battery selection.

Nitrate & Phosphate Sensor

DOT - Darmouth Ocean Technologies - Canada

Dartmouth Ocean Technologies introduces the Dual Chemistry Nitrate & Phosphate Sensor, a miniaturized, autonomous sensor for marine environments designed as a cost effective solution to real-time, “hands-free” measurement of nitrate & phosphate (NP) concentrations.

Features at a Glance:
- Lab-on-Chip (LOC): Microfluidic wet chemistry sensor featuring patented and proprietary “Inlaid Optical Cell
TechnologyTM”* - *U.S. Patent 11,231,356 B2
- Provides expanded insights into the water sample chemistry not available from a single chemical analysis
- Reduces reagent consumption, decreases reaction time, and reduces power draw
- Self-Powered and self-logging for real time measurement (data streaming available)
- Technology Flexibility: An excellent contender for towed systems, un-crewed vehicles, gliders, ROVs, Voluntary Observation Ships, buoys, and profiling floats
- Customizable and configurable to fit into most platforms

Fluorimeters and Bioluminometers

TriLux

Chelsea Technologies

Chlorophyll sensor to measure chlorophyll and algal pigment concentration in ocean and freshwater environments, along with turbidity, using the mini fluorometer, TriLux. With two models to target different phytoplankton species and depth ratings to 2000m, TriLux is suitable for a wide variety of water environments:
Chlorophyll a, Phycocyanin, Turbidity for freshwater deployments
Chlorophyll a, Phycoerythrin, Turbidity for marine deployments

Applications
Harmful algal bloom detection and monitoring
Coastal zone monitoring
Biological assessment in marine protected areas
Integration with CTDs, buoys, surface vehicles, ROVs, AUVs and towed vehicles

UviLux

Chelsea Technologies

UviLux sensors enable real-time, in situ detection of a wide variety of UV fluorescence parameters, including: Polycyclic Aromatic Hydrocarbons (PAH), BTEX, CDOM, Tryptophan-like fluorescence (TLF), BOD and Optical Brightening Agents (OBA).

The compact and highly sensitive fluorometers have excellent turbidity rejection and high ambient light rejection, making them suitable for use in water and wastewater treatment works, as well as natural waters at the surface and to depths of up to 1000 m.

LabSTAF - Phytoplankton Primary Productivity

Chelsea Technologies

Single Turnover Active Fluorometry (STAF) for evaluating phytoplankton primary productivity (PhytoPP).

LabSTAF is the next generation of STAF-based instrumentation to evaluate phytoplankton primary productivity. The system incorporates unparalleled sensitivity with a wide dynamic range, allowing for measurements in all environments: from reservoirs and lakes to open ocean.

GlowTracka

Chelsea Technologies

GlowTracka bioluminometer detects bioluminescence from dinoflagellates and similar organisms.

GlowTracka Features
Highly sensitive bioluminometer
Small and rugged for ease of integration within wider systems
Low power consumption
Precision flow sensor included

GlowTracka Applications
Biomass studies
Bioluminescent species abundance
Harmful algal bloom detection
Toxic algae bloom tracking

LabSTAF HB - High Biomass Algae Assessment

Chelsea Technologies

Phytoplankton primary productivity (PhytoPP) assessment for industrial algae producers

LabSTAF HB is the latest product in our range of next generation of STAF-based instrumentation to evaluate phytoplankton primary productivity, specifically designed for high biomass applications such as industrial algae production.