A fish finder device housing having a watertight shell housing capable of containing an electronic load having a transducer within an interior space, the housing have oppositely opposed extension members, each of the extension members having a keel, the oppositely opposed extension members and keels helping maintain the fish finder device housing and contained transducer in a stable condition such as in a substantially upright vertical position and preventing the housing from rocking back-and-forth and rolling side-to-side during normal fishing conditions including choppy or wavy water, when an angler is fishing in a body of water having a current, or when the angler is pulling the fish finder device housing behind a watercraft during trolling. The fish finder device housing may have an aperture in at least one of the extension members for connecting a fishing line, such as that of a fishing pole, or a line for tethering the fish finder device housing behind a watercraft.
