The best performing 1 kW in-hull, this narrow beam transducer provides crisp image detail. The transducer has a depth of 3,000'; an operating frequency of 42 to 65 kHz and 130 to 210 kHz; a beamwidth of 16 to 25 degrees or 6 to 10 degrees; and a 0 to 30 degree deadrise. Transducer kit comes with installation instructions. Follow the instructions carefully to avoid damaging your boat. *Not recommended for cored-hull vessels.