Generic Portable Wired LCD Display Alarm Transducer Sonar Sensor Fish Finder The latest high-tech electronic products, apply to the pond, river, sea and other fishing environment Round transducer sensor with 7.5 m cable, 45-degree beam angle Detect and display grass, short & tall weeds, sand, and rocks on seabed With fish depth scale and audible fish alarm Get the approximate location of fish and the depth of water