The epsi (short for epsilometer, as it measures the turbulent quantity epsilon) has two shear probes, two thermistors and accelerometers.
We are really making progress on the Navy-funded epsilometer! It is now capable of streaming serial data or writing to compact flash, has a 1000-m pressure case, and can run for a couple of days on AA batteries. We're beginning to put it on everything, including wire walkers and a newly designed fast CTD vehicle.
We have a test early November on R/V Sproul and are hoping for excellent results.