On the 1st of December a major step forward in the direct ocean observing was taken with the deployment of the new observatory infrastructure, an ocean monitoring multi-sensor module EMSO Generic Instrument Module (EGIM) and its installation and maintenance on the OBSEA underwater observatory near the coast of Vilanova i la Geltrú (Barcelona, Spain). EGIM is the key objective of the European Multidisciplinary Seafloor and water-column Observatory Development (EMSODEV) project- funded by the European Union' s dedicated programme for research and innovation, Horizon 2020. After EGIM has undergone various and rigorous dry tests in laboratories, the first deployment's main purpose was to test the module under real-life conditions. This data set contains raw data from this deployment, including data collected using a Seabird SBE37 CTD, a Seabird SBE54 Tsunami meter, a AADI DW4831 Oxygen Optode, a Wetlabs ECO NTUrtd Fluorometer and a TELEDYNE RDI Workhorse monitor ADCP.