PyroScience offers a variety of OEM modules for custom integration into water-tight housings for underwater measurements of dissolved oxygen with the FSO2-SUBPORT, PICO-O2-SUB or APHOX-S-O2. Underwater measurements of pH can be realized with the new ultra-compact PICO-PH-SUB and optical pH probes. These ultra-compact OEM modules can be integrated e.g. in the lid of a cylindrical underwater housing, requiring pressure tests after custom integration.

Different sensor types are available for these modules including O2 micro-and minisensors with several options like optical isolation, fast and ultra-fast response times, oxygen robust probes and flow-through cells. Additionally, optical pH miniprobes for different pH ranges can be used. Non-invasive measurements of O2 and pH can be performed by using our sensor spots. 

These OEM modules offer:

  • Pressure stable feed-through up to 4000 m depth (400 bar)
  • Broad portfolio of compatible optical oxygen and pH sensors (with option -SUB)
  • UART interface
  • Analog output (only FSO2-SUBPORT)



Applicable Oxygen Sensor Types



Applicable pH Sensor Types



Related Peer-Reviewed Publications

Diverse methylotrophic methanogenic archaea causehigh methane emissions from seagrass meadows
Schorn et al. 2022, PNAS

High Net Primary Production of Mediterranean Seagrass (Posidonia oceanica) Meadows Determined with Aquatic Eddy Covariance
Koopmans et al., 2020, Frontiers in Marine Science: Marine Ecosystem Ecology

In situ quantification of ultra-low O2 concentrations in oxygen minimum zones: Application of novel optodes
Larsen et al., 2016, Limnology and Oceanography: Methods

Estimation of net ecosystem metabolism of seagrass meadows in the coastal waters of the East Sea and Black Sea using the noninvasive eddy covariance technique
Lee et al., 2017, Ocean Science Journal

Oxygen metabolism and pH in coastal ecosystems: Eddy Covariance Hydrogen ion and Oxygen Exchange System (ECHOES)
Long et al., 2015, Limnology and Oceanography: Methods

Surface gas exchange determined from an aquatic eddy covariance floating platform
Long et al., 2018, Limnol. Oceanogr. Methods

Closing the oxygen mass balance in shallow coastal ecosystems
Long et al., 2019, Limnol. Oceanogr.

Diverse methylotrophic methanogenic archaea cause high methane emissions from seagrass meadows
Schorn et al., 2022, PNAS

A versatile optode system for oxygen, carbon dioxide, and pH measurements in seawater with integrated battery and logger
Staudinger,2018, Limnology and Oceanography: Methods

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