Take the guesswork out of Fishing! Portable Sonar Fish Finder detects the presence of fish from the dock, boat, shore...anywhere, and how deep they are! This unit packs a host of features into a marine tough, compact and waterproof housing.
Portable Sonar Fish Finder consists of three components all are interconnected by 20 feet of cable: hand-held LED readout, float, and sonar module. Just pop in 4 AA batteries and your Fish Finder will be ready to detect the presence of fish and how deep they are. It covers 2.5 feet up to 80 feet. This Fish Finder is small enough, you can take it anywhere - it's about the size of a fishing reel.