It is a Hummingbird 141c, its not real nice one but its an upgrade from my 67 dollar Eagle Fish Easy,lol. Anyways, I dont understand it. When Im at a dead stop, the screen is scrolling. I dont know what is where. Is what Im seeing behind, in front, under me...? After installing it I went to the lake thinking I was on the gravy train from now on. Boy was I wrong,lol.