The Sea-Bird SBE 63 Dissolved Oxygen Sensor 631893 was deployed on 2022-05-21 at Endeavour East. This station is located to the east of the Endeavour Hydrothermal Vents, and includes instrumentation near the NEPTUNE observatory Endeavour node. This device is a Oxygen Sensor. Oxygen sensors measure dissolved oxygen concentration in seawater. It was deployed on a fixed platform. Data from this deployment were archived and made available through Ocean Networks Canada's Oceans 3.0 digital infrastructure, with quality assurance and derived data products following established practices.