Wireless convenience: Our Fish detector uses a wireless sonar sensor designed for LUCKY fish finders, allowing you to locate fish without tangled wires. Depth and temperature measurement: Depth range up to 45m (147ft). Optional DT functionality provides depth and water temperature data to support informed fishing decisions. Optimized sonar performance: Operates at 125 KHz with a 90degree beam angle to maximize coverage and accuracy in detecting fish. Waterproof design: Built from durable plastic with a watertight seal cover and seal ring to withstand varying fishing conditions and deliver reliable performance season after season. Compatibility and use scenarios: Specifically designed for LUCKY fish finders and suitable for wireless sensing on boats, kayaks, and shore fishing. Practical applications: Boat or kayak fishing: Use the wireless sensor to scan for fish without cable clutter, quickly identifying likely hotspots. Drifting or trolling in freshwater or saltwater: The 125 KHz frequency and wide 90degree beam provide broad coverage to locate schools and adjust lure depth on the fly. Temperatureaware fishing: Enable DT to monitor water temperature and depth, helping tailor lure depth and presentation to changing conditions.