For all of those people who go out to sea and need to check the weather out on the water this is the real deal. Google smartbay and you will see amap of nl. click on your location and it will tell you all you need to know about the water con. I was going to put it under sea ducks but all needs to see this smartbay buoy. These buoy's tell you the hight of waves, temp of water.winds and so much more. I am trying to help all who go by water. (smartbay.com) Be safe on the water.