Fish Detector Product Description Advanced Fish Detection Technology: The Fish Detector uses sonar to accurately identify fish size, bottom contour, water depth, and displays water temperature, helping you make informed fishing decisions and improve efficiency. RealTime Data Transmission: Connects with smartphones and tablets for realtime transmission of detection data. You can map water beds, log water temperatures and depths, and add notes such as species and lure types to your trip data. Lightweight and Portable Design: Compact and easy to carry, with dimensions 6.8 cm by 6.8 cm by 5.0 cm, making it convenient for canoe trips, kayak fishing, or ice fishing. Versatile Application in Various Waters: Suitable for both saltwater and freshwater fishing. Effectively locates fish and underwater structures in ponds, lakes, streams, and rivers, accommodating anglers of all skill levels. Use Scenarios: Freshwater lake or pond: identify structure and depth hotspots, log temperature profiles, and target species more efficiently. Ice fishing: compact and portable for quick scanning under the ice to locate holes and schools. Saltwater fishing from kayak or shore: detect dropoffs, weed lines, and underwater structures with realtime data to guide lure choice and placement.