Underwater Oxygen Sensors

The PyroScience ultra high-speed Oxygen sensors are one of the fastest available with a <0.5 second response time for fast profiling applications or eddy covariance measurement. They are also one of the most sensitive with a detection limit of 0.04 µg/L for measurement in oxygen minimum zones or in de-oxygenation events. PyroScience optical oxygen sensors are available in various formats. Oxygen sensor caps for monitoring applications, fibre based sensors and ultra high speed sensors.

Oxygen Flow Through Cells, Sensor Caps and Sensor Spots

XFLOW-HS - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

XFLOW-HS

  • Sterile high speed oxygen flow-through cell
  • Integrated optical oxygen sensor
  • Sterilized using 25kGy beta-irradiation
  • Luer lock adapters for ca. 3.2 or 4.8 mm ID tubing
  • Works in gas (%oxygen) and liquids (DO)
  • High speed response time (t90 < 1s)

These flow-through cells (PU=4 pieces) have an integrated oxygen sensor for continuous measurements of gaseous or aqueous liquid samples pumped through the cell. The cell consists of a Luer-lock T-Connector with a removable oxygen probe. The Luer-lock connectors allow direct connection of tubing with 3.2 or 4.8 mm inner diameter.

OXCAP-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXCAP-SUB

  • Oxygen sensor cap for unterwater meters
  • Sensor screw cap with integrated optical oxygen sensor
  • Fast sensor with low drift
  • For all devices with -SUB connector
  • Minimize maintenance by simply exchanging the cap
  • Negligible drift, >3 years shelf time

The OXCAP-SUB integrates an oxygen sensor spot especially developed for underwater and deep-sea applications. The OXCAP is attached via the PyroScience SUB-connector directly to a compatible read-out device. An additional protective cap makes the OXCAP highly robust against mechanical impact and ideal for long-term monitoring applications. The sensing principle is based on an optical detection method and shows virtually no drift and fast response. For profiling applications, we recommend our high-speed sensor cap.

UTROXCAP-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

UTROXCAP-SUB

  • Ultra-trace oxygen sensor cap for underwater meters
  • Sensor screw cap with integrated optical ultra-trace oxygen sensor
  • Fast sensor with low drift
  • For all devices with -SUB connector
  • Minimized maintenance by simply exchanging the cap

The ultra-trace oxygen sensor cap UTROXCAP-SUB integrates an ultra-trace range oxygen sensor spot (without optical isolation), especially developed for underwater and deep-sea applications. The UTROXCAP can be screwed directly onto the PyroScience SUB-connector of a compatible underwater read-out device. The UTROXCAP-SUB is protected and hence highly robust against mechanical impact and ideal for long-term monitoring applications. The sensing principle is based on an optical detection method and shows virtually no drift and fast response. The UTROXCAP-SUB is especially suited for trace oxygen detection in oxygen minimum zones or during de-oxygenation events underwater.

OXCAPG-UHS-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXCAPG-UHS-SUB

  • Ultra high speed oxygen sensor
  • Sensor screw cap with integrated optical oxygen sensor
  • Ultra high speed response time (t90 < 0.5s)
  • Ideal for profiling applications
  • No oxygen consumption

The OXCAPG-HS-SUB integrates an optical fibre coated with an oxygen sensor especially developed for underwater and deep-sea applications. The OXCAPG is attached via the PyroScience SUB-connector directly to a compatible read-out device. An additional protective cap makes the OXCAPG highly robust against mechanical impact. The sensing principle is based on an optical detection method and shows virtually no drift and fast response. The ultra high-speed response time makes this sensor suitable for profiling applications or eddy covariance measurements.

OXCAPG-HS-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXCAPG-HS-SUB

  • Oxygen sensor cap for profiling
  • Sensor screw cap with integrated optical oxygen sensor
  • High speed response time (t90 < 1s)
  • Ideal for profiling applications
  • No oxygen consumption

The PyroScience OXCAPG-HS-SUB integrates an optical fiber coated with an oxygen sensor especially developed for underwater and deep-sea applications. The OXCAP is attached via the PyroScience SUB-connector directly to a compatible read-out device. An additional protective cap makes the OXCAP highly robust against mechanical impact. The sensing principle is based on an optical detection method and shows virtually no drift and fast response. The high-speed response time makes this sensor suitable for profiling applications or eddy covariance measurements. If even faster sensors are required, please refer to our ultra-high speed sensor OXCAPG-UHS-CAP.

OXSP5-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXSP5-SUB

  • Oxygen sensor spots for aquatic applications
  • Sensor spots (8 pcs.) 5mm in diameter
  • For underwater devices (-SUB)
  • Minimized influence of hydrostatic pressure
  • Suitable for in-situ incubations
  • No oxygen consumption

Oxygen sensor spots allow oxygen measurements in closed sample containers under water with contactless read-out through a transparent window (glass, acryl glass) with special adapters and optical fibres. This enables incubations in closed systems in high water depths. The sensor spot can be used down to 4000m depth and has a pressure influence of ca. 1%/1000m. For read-out a suitable underwater device and an optical fibre with underwater connector is required.

Oxygen Probes
PyroScience robust oxygen probes are based on optical detection principles (proven REDFLASH technology) and can be used for precise bulk measurements in gas samples (oxygen gas), stirred liquids (dissolved oxygen, DO) and in respirometry of e.g. fish.

OXROB10-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXROB10-SUB

  • Robust oxygen probe
  • Stainless steel 10cm long, 3mm in diameter
  • With underwater SUB-connector (SUB)
  • No oxygen consumption
  • Optically isolated (OI)
  • Negligible drift, >3 years shelf time
OXROBSC-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXROBSC-SUB

  • Robust screw cap oxygen probe
  • 2 oxygen screw cap sensors
  • Stainless steel 10cm long, 4mm in diameter
  • Works in gas (%oxygen) and liquids (DO)
  • No oxygen consumption
  • Optically isolated (OI)
OXROB3-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXROB3-SUB

  • Robust oxygen probe
  • Stainless steel 3cm long, 3mm in diameter
  • With underwater SUB-connector (SUB)
  • No oxygen consumption
  • Optically isolated (OI)
  • Negligible drift, >3 years shelf time

Fibre-Optic Oxygen Sensors
The fibre-optic oxygen sensors from PyroScience feature no oxygen consumption, no stirring sensitivity, an extremely long shelf time, resistance to corrosive environments (e.g. seawater) and are suitable for multiple applications in gas, water and aqueous samples.

OXR430-UHS-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXR430-UHS-SUB

  • Retractable fibre oxygen minisensor
  • 430µm in diameter
  • Ultra-high speed response time (t90 < 0.3s)
  • With underwater SUB-connector (SUB)
  • No oxygen consumption
  • Negligible drift, >3 years shelf time

This fibre-optic minisensor consist of an optical fibre with a sensor tip diameter of 430 µm. Compared to a microsensor, this sensor is suited for slightly larger samples, long-term measurements and profiling applications with less spatial resolution requirements.

OXR430-HS-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXR430-HS-SUB

  • Retractable fibre oxygen minisensor
  • 430µm in diameter
  • High speed response time (t90 < 0.8s)
  • With underwater SUB-connector (SUB)
  • No oxygen consumption
  • Negligible drift, >3 years shelf time

This fibre-optic minisensor consist of an optical fibre with a sensor tip diameter of 430 µm. Compared to a microsensor, this sensor is suited for slightly larger samples, long-term measurements and profiling applications with less spatial resolution requirements.

OXR430-OI-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXR430-OI-SUB

  • Retractable Fibre Oxygen Minisensor
  • 430µm in diameter
  • Optically isolated (OI)
  • With underwater SUB-connector (SUB)
  • No oxygen consumption
  • Negligible drift, >3 years shelf time

This fibre-optic minisensor consist of an optical fibrr with a sensor tip diameter of 430 µm. Compared to a microsensor, this sensor is suited for slightly larger samples, long-term measurements and profiling applications with less spatial resolution requirements.

OXR430-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXR430-SUB

  • Retractable Fibre Oxygen Minisensor
  • 430µm in diameter
  • With underwater SUB-connector (SUB)
  • No oxygen consumption
  • Negligible drift, >3 years shelf time

This fibre-optic minisensor consist of an optical fibre with a sensor tip diameter of 430 µm. Compared to a microsensor, this sensor is suited for slightly larger samples, long-term measurements and profiling applications with less spatial resolution requirements.

OXR50-UHS-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXR50-UHS-SUB

  • Retractable Fibre Oxygen Microsensor
  • 230µm in diameter
  • 50-70µm sharp sensor tip
  • Ultra-high speed response time (t90 < 0.3s)
  • With underwater SUB-connector (SUB)
  • No oxygen consumption

This fibre-optic microsensor consist of an optical fibre (230 µm) with a sensor tip diameter of approximately 50-70 µm. Microsensors are perfectly suited for measurements in small samples and for profile measurements (e.g. in sediments, soils, plant tissue, biofilm) with high spatial resolution (microprofiling).

OXR50-HS-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXR50-HS-SUB

  • Retractable fibre oxygen microsensor
  • 230µm in diameter
  • 50-70µm sharp sensor tip
  • High speed response time (t90 < 0.8s)
  • With underwater SUB-connector (SUB)
  • No oxygen consumption

This fibre-optic microsensor consist of an optical fibre (230 µm) with a sensor tip diameter of approximately 50-70 µm. Microsensors are perfectly suited for measurements in small samples and for profile measurements (e.g. in sediments, soils, plant tissue, biofilm) with high spatial resolution (microprofiling).

OXR50-OI-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXR50-OI-SUB

  • Retractable fibre oxygen microsensor
  • 230µm in diameter
  • 50-70µm sharp sensor tip
  • Optically isolated (OI)
  • With underwater SUB-connector (SUB)
  • No oxygen consumption

This fibre-optic microsensor consist of an optical fibre (230 µm) with a sensor tip diameter of approximately 50-70 µm. Microsensors are perfectly suited for measurements in small samples and for profile measurements (e.g. in sediments, soils, plant tissue, biofilm) with high spatial resolution (microprofiling).

OXR50-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXR50-SUB

  • Retractable fibre oxygen microsensor
  • 230µm in diameter
  • 50-70µm sharp sensor tip
  • With underwater SUB-connector (SUB)
  • No oxygen consumption
  • Negligible drift, >3 years shelf time

This fibre-optic microsensor consist of an optical fibre (230 µm) with a sensor tip diameter of approximately 50-70 µm. Microsensors are perfectly suited for measurements in small samples and for profile measurements (e.g. in sediments, soils, plant tissue, biofilm) with high spatial resolution (microprofiling).

OXF50-UHS-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXF50-UHS-SUB

  • Fixed fibre oxygen microsensor
  • Fixed sensor tip surrounded by needle
  • Sensor tip protrudes ca. 6mm
  • 50-70µm sharp sensor tip
  • Ultra-high speed response time (t90 < 0.3s)
  • With underwater SUB-connector (SUB)

This fibre-optic microsensor consist of an optical fibre (230 µm) with a sensor tip diameter of approximately 50-70 µm. Microsensors are perfectly suited for measurements in small samples and for profile measurements (e.g. in sediments, soils, plant tissue, biofilm) with high spatial resolution (microprofiling).

OXF50-HS-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXF50-HS-SUB

  • Fixed fibre oxygen microsensor
  • Fixed sensor tip surrounded by needle
  • Sensor tip protrudes ca. 6mm
  • 50-70µm sharp sensor tip
  • High speed response time (t90 < 0.8s)
  • With underwater SUB-connector (SUB)

This fibre-optic microsensor consist of an optical fibre (230 µm) with a sensor tip diameter of approximately 50-70 µm. Microsensors are perfectly suited for measurements in small samples and for profile measurements (e.g. in sediments, soils, plant tissue, biofilm) with high spatial resolution (microprofiling).

OXF50-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXF50-SUB

  • Fixed fibre oxygen microsensor
  • Fixed sensor tip surrounded by needle
  • Sensor tip protrudes ca. 6mm
  • 50-70µm sharp sensor tip
  • With underwater SUB-connector (SUB)
  • Negligible drift, >3 years shelf time

This fibre-optic microsensor consist of an optical fibre (230 µm) with a sensor tip diameter of approximately 50-70 µm. Microsensors are perfectly suited for measurements in small samples and for profile measurements (e.g. in sediments, soils, plant tissue, biofilm) with high spatial resolution (microprofiling).

OXF1100-UHS-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXF1100-UHS-SUB

  • Fixed fibre oxygen minisensor
  • Fixed sensor tip surrounded by needle
  • Sensor tip protrudes ca. 2mm
  • Ultra-high speed response time (t90 < 0.3s)
  • With underwater SUB-connector (SUB)
  • Negligible drift, >3 years shelf time

This fibre-optic minisensor consist of an optical fibre with a sensor tip diameter of 430 µm. Compared to a microsensor, this sensor is suited for slightly larger samples, long-term measurements and profiling applications with less spatial resolution requirements.

OXF1100-HS-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXF1100-HS-SUB

  • Fixed fibre oxygen minisensor
  • Fixed sensor tip surrounded by needle
  • Sensor tip protrudes ca. 2mm
  • High speed response time (t90 < 0.8s)
  • With underwater SUB-connector (SUB)
  • Negligible drift, >3 years shelf time

This fibre-optic minisensor consist of an optical fibre with a sensor tip diameter of 430 µm. Compared to a microsensor, this sensor is suited for slightly larger samples, long-term measurements and profiling applications with less spatial resolution requirements.

OXF1100-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXF1100-SUB

  • Fixed fibre oxygen minisensor
  • Fixed sensor tip surrounded by needle
  • Sensor tip protrudes ca. 2mm
  • With underwater SUB-connector (SUB)
  • No oxygen consumption
  • Negligible drift, >3 years shelf time

This fibre-optic minisensor consist of an optical fibre with a sensor tip diameter of 430 µm. Compared to a microsensor, this sensor is suited for slightly larger samples, long-term measurements and profiling applications with less spatial resolution requirements.

OXB430-HS-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXB430-HS-SUB

  • Bare fibre oxygen minisensor
  • Optical fiber 430µm in diameter
  • High speed response time (t90 < 0.8s)
  • With underwater SUB-connector (SUB)
  • No oxygen consumption
  • Negligible drift, >3 years shelf time

This fibre-optic minisensor consist of an optical fibre with a sensor tip diameter of 430 µm. Compared to a microsensor, this sensor is suited for slightly larger samples, long-term measurements and profiling applications with less spatial resolution requirements.

OXB430-UHS-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXB430-UHS-SUB

  • Bare fibre oxygen minisensor
  • Optical fibre 430µm in diameter
  • Ultra-high speed response time (t90 < 0.3s)
  • With underwater SUB-connector (SUB)
  • No oxygen consumption
  • Negligible drift, >3 years shelf time

This fibre-optic minisensor consist of an optical fibre with a sensor tip diameter of 430 µm. Compared to a microsensor, this sensor is suited for slightly larger samples, long-term measurements and profiling applications with less spatial resolution requirements.

OXB430-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXB430-SUB

  • Bare fibre oxygen minisensor
  • Optical fibre 430µm in diameter
  • With underwater SUB-connector (SUB)
  • No oxygen consumption
  • Negligible drift, >3 years shelf time

This fibre-optic minisensor consist of an optical fibre with a sensor tip diameter of 430 µm. Compared to a microsensor, this sensor is suited for slightly larger samples, long-term measurements and profiling applications with less spatial resolution requirements.

OXB50-UHS-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXB50-UHS-SUB

  • Bare fibre oxygen microsensor
  • 50-70µm sharp sensor tip
  • Ultra-high speed response time (t90 < 0.3s)
  • With underwater SUB-connector (SUB)
  • No oxygen consumption
  • Negligible drift, >3 years shelf time

This fibre-optic microsensor consist of an optical fibre (230 µm) with a sensor tip diameter of approximately 50-70 µm. Microsensors are perfectly suited for measurements in small samples and for profile measurements (e.g. in sediments, soils, plant tissue, biofilm) with high spatial resolution (microprofiling).

OXB50-HS-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXB50-HS-SUB

  • Bare fibre oxygen microsensor
  • 50-70µm sharp sensor tip
  • High speed response time (t90 < 0.8s)
  • With underwater SUB-connector (SUB)
  • No oxygen consumption
  • Negligible drift, >3 years shelf time

This fibre-optic microsensor consist of an optical fibre (230 µm) with a sensor tip diameter of approximately 50-70 µm. Microsensors are perfectly suited for measurements in small samples and for profile measurements (e.g. in sediments, soils, plant tissue, biofilm) with high spatial resolution (microprofiling).

OXB50-SUB - PyroScience underwater Oxygen, pH and temperature loggers and transmitters for shallow water and deep sea applications

OXB50-SUB

  • Bare fibre oxygen microsensor
  • Optical fiber 430µm in diameter
  • With underwater SUB-connector (SUB)
  • No oxygen consumption
  • Negligible drift, >3 years shelf time

This fibre-optic microsensor consist of an optical fibre (230 µm) with a sensor tip diameter of approximately 50-70 µm. Microsensors are perfectly suited for measurements in small samples and for profile measurements (e.g. in sediments, soils, plant tissue, biofilm) with high spatial resolution (microprofiling).