Deploying Sentinel on the bottom of the ocean is just as easy as setting it up on land. Program Sentinel once in your office or lab, as you would if deploying on land.When you have reached your deployment spot, just flip the switch, attach the heavy duty brass seal, and hook on an acoustic release with a concrete anchor.
Attach your buoy to the top of the Sentinel tube, and throw the whole assembly overboard. Sentinel will not start acquiring data while on the deck of the ship. It will know when conditions become quiet enough for measurement, and will automatically begin sampling when it is out of range of the ship.