Adding a monitor to your video system allows you to have a better view of your subject while underwater. It is a valuable tool for better framing and to easily see any camera setting adjustments you make.
Long a major manufacturer of high-quality underwater strobes, Sea & Sea turned the world on it’s ear a few years ago with the introduction of the YS-D1 underwater strobe. Small, very powerful and adjustable, it's become a standard for many photographers. Recently Sea & Sea released a revised YS-D2 strobe model.