The OEM module FSO2-SUBPORT is a fiber-optic oxygen meter for integration into custom-made underwater housings. The FSO2-SUBPORT consists of a special version of the FireSting-O2-Mini oxygen meter combined with a pressure stable optical connector (optical feed-through). It can be used for many different applications like water column and sediment profiling, eddy covariance studies, etc.

The FSO2-SUBPORT is easy to mount and can also be used to retrofit existing underwater equipment since its thread is compatible to some of the most popular deep-sea connectors. The titanium connector is open face pressure stable up to 4000 m water depth (400 bars). It is typically mounted in the lid of pressure cylinders.

The module has a serial interface to control the instrument and to retrieve data, as well as high-resolution analog outputs. Optionally, an USB adapter cable FSO2-MINI-USB is available including a licence for the Pyro Oxygen Logger software. When connected to this USB adapter cable, the FireSting-O2-SubPort can be comfortably configured and operated with a PC using the versatile Pyro Oxygen Logger software.