Hook 7 units have GPS .... but base maps (no contours), unless you put a map card in it. Hook-7 | Fishfinder & Chartplotter | Lowrance | Lowrance USA
Hook 7 units have GPS .... but base maps (no contours), unless you put a map card in it. Hook-7 | Fishfinder & Chartplotter | Lowrance | Lowrance USA