From our first prototype, we improved our device with the goal of making it more modular and serviceable. We approached it by breaking up the main compartment of the buoy into different components, thereby it more accessible. This can be seen in the picture on the right where each section has its own functionality.
We keep the general shape of the device similar to our first prototype since it was able to stay buoyant. We added a protective barrier at the bottom to keep the sensors safe from any nibbling by the fishes.