SeaFETTM serial number 200 and higher can be integrated with an SBE 37-SMP-ODO to form a SeapHOxTM. When properly configured, the SeaFET will automatically correct pH with CTD temperature and salinity. If a 37-SMP-ODO is not available, or if you SeaFET is below serial number 200, the SeaFETTM records time-stamped data internally that can be matched with CTD data during post processing for temperature and salinity corrections.