Wireless sonar sensor for fish finders with a 45 m depth range 90degree beam angle and 125 kHz sonar frequency Durable plastic construction with a watertight seal cover and seal ring Runs on a replaceable battery Key benefits Wireless operation reduces cable clutter and simplifies installation Wide 90degree beam provides broad sonar coverage under the boat for better bottom and fish reading 45 m depth range supports middepth fishing scenarios and varying water conditions Watertight seal cover and seal ring protect electronics in wet environments for reliable performance Replaceable battery enables easy field maintenance and extended use without service downtime What this helps you do See fish and bottom structure clearly within a moderate depth range while keeping setup simple and tidy Install and relocate the sensor quickly on different vessels or layouts without dealing with complex wiring Maintain operation in wet conditions thanks to a robust watertight seal design Practical use scenarios Freshwater or coastal boat fishing: mount the sensor on the vessel to map bottom contours and detect fish within up to 45 m, using the 90degree beam for widearea coverage Small boats, kayaks, or inflatable crafts: leverage wireless design to reduce cabling and simplify deployment, making it easier to use in tight or portable setups Extended trips or field maintenance: rely on a replaceable battery to keep the sensor powered during long outings and swap batteries on the go as needed