SeaLog
Oceanic
How to import dives from a Oceanic Datamask
The Oceanic Datamask transfers over serial cable only. iOS does not expose that kind of connection to apps, so the dives come across once through a Mac or PC, then live on your phone forever.
Transfer the dives off the Oceanic Datamask
- Install the driver for the cable
The serial cable is a USB-to-serial adapter, and its chipset needs a driver before any software can see the Oceanic Datamask. Install the FTDI (FT232 USB-to-UART VCP) on macOS for every model, and on Windows for the VTX / ProPlus X generation. Older Windows models instead use Oceanic's own "2002 Design, Inc. USB Download Interface Device" driver package (x32/x64_USBDriver.exe), not a generic FTDI/CP210x/Prolific driver. Bluetooth models (Geo 4.0, Veo 4.0, ProPlus 4.0, ProPlus X) need no driver at all. driver, then reboot. Skip this and the desktop app will report no device on a cable that is working perfectly.
Oceanic USB Download Interface driver, Windows 64-bit (all older models)
These cables are USB-to-serial. Without the FTDI driver the port never appears, and the software reports no device. - Connect the Oceanic Datamask to a Mac or PC
Use the serial cable made for the Oceanic Datamask, not a generic charging cable: the data pins differ. Check the o-ring is seated, line the connector up with the notch on the case, and turn it to lock. An iPhone or iPad cannot open this kind of connection at all, so this step has to happen on a computer.
The o-ring must be in place, the nub lines up with the notch, then the head turns a quarter turn to lock. This cable is FTDI (FT232 USB-to-UART VCP) on macOS for every model, and on Windows for the VTX / ProPlus X generation. Older Windows models instead use Oceanic's own "2002 Design, Inc. USB Download Interface Device" driver package (x32/x64_USBDriver.exe), not a generic FTDI/CP210x/Prolific driver. Bluetooth models (Geo 4.0, Veo 4.0, ProPlus 4.0, ProPlus X) need no driver at all.. - Put the computer into PC mode
Switch the Oceanic Datamask into its PC or upload mode before you launch the software, not after. Most desktop apps only look for the unit at startup, so a computer that wakes up late is a computer the software never finds.
Most units only hold this mode for a minute or two, so do it last, right before you connect. - Download the dives with desktop software
Read the computer with Oceanic+ and DiverLog+ or Subsurface. Subsurface is free, open source, runs on macOS, Windows and Linux, and supports this model.
DiveCloud online dive storage (sync bridge between DiverLog desktop and mobile)
- Export the dives as UDDF
Export the whole logbook to a UDDF file. UDDF is the open dive-log exchange format and keeps the full depth profile, not just the summary numbers.
Export the whole logbook, not the visible page. UDDF keeps the sample-by-sample depth profile, which a summary CSV does not. - Import the file into SeaLog
Get the file to your phone. AirDrop, iCloud Drive or email all work, anything that lands it in the iOS Files app. Then in SeaLog tap the plus button, Import dives, UDDF file, and pick it. Every dive arrives with its profile, and duplicates are skipped.
A dive log app for the Datamask
Once the dives are in, SeaLog treats them like its own: a scrubbable depth profile, the site pinned on a map, water temperature, gas and tank, buddies, and the photos from your camera roll matched to the minutes you were underwater. Tag the animals you saw and they go into your species life list. It works offline on the boat and syncs when you are back, and your whole logbook exports to UDDF, CSV or PDF whenever you ask, so nothing is locked in here either.
Oceanic’s own software and drivers
The brand is alive under Huish Outdoors and the Bluetooth path (DiverLog+ mobile, Oceanic+ for Apple Watch) is actively maintained, but the desktop side is orphaned: OceanLog for Windows has not been updated since June 2015 and DiverLog for Mac has been pulled from the Mac App Store entirely, so owners of cable-era Oceanic computers on macOS have no working official software.
- DriverOceanic USB Download Interface driver, Windows 64-bit (all older models)Self-extracting archive that installs a "2002 Design, Inc. USB Download Interface Device" driver. This is Oceanic's proprietary path, not a generic FTDI install. Do not substitute the CDM package here.Windows
- DriverOceanic USB Download Interface driver, Windows 32-bit (all older models)32-bit build of the same legacy interface driver.Windows
- ManualDatamask user manual
- Desktop softwareDiveCloud online dive storage (sync bridge between DiverLog desktop and mobile)Run by Pelagic and still live. Free tier is capped at 10 dives or 50 MB; the paid tier adds 2 GB. Required if you want desktop and phone logs to meet.Browser
- DriverFTDI USB serial driver for macOS 10.14 and newerSystem-extension style installer. On macOS this same driver serves every cable-era Oceanic model. Unplug the cable before installing, then approve the extension in Security settings.macOS
- DriverFTDI USB serial driver for macOS 10.13 and olderLegacy kext package. Gatekeeper flags it as an unidentified developer, so it must be opened via right-click rather than double-click.macOS
- DriverDiverLog driver download hub (chooses the right driver by model and OS)The single page that documents the model-to-driver split, with step-by-step install instructions for each of the four driver packages.Win + Mac
- Official guideHow to download dives with DiverLog for macOSStill published even though the Mac app itself has been delisted. Useful reference if you already have a copy installed.macOS
Every link goes to Oceanic’s own site and was checked before publishing. If one has rotted since, tell us and we will fix it.
Oceanic Datamask: common questions
Can I connect the Oceanic Datamask to my iPhone directly?
No, and no app can change that. The Oceanic Datamask transfers over serial cable only, a connection iOS does not expose to apps. Anyone promising a direct wireless download from this model is describing a different computer. The one-time cable route above gets every dive across.
Which cable and drivers do I need on a Mac?
Use the Oceanic interface cable made for this model, not a generic charging cable: the data pins differ. Most of these cables are USB-to-serial and need the driver for their chipset on macOS, usually Silicon Labs CP210x or FTDI. Install the driver, reboot, and the port appears to the desktop software.
Do I have to do this every time I dive?
Only if you want the new dives in digitally. Many divers do the cable run once to rescue their history, then log new dives directly in SeaLog on the boat, which takes about as long as filling in a paper page.