Airmar 509LHW 3kW 28 to 60kHz & 150 to 250kHz Thru-Hull TransducerThis all-in-one transducer for popular fishing frequencies (28, 38, 50 and 200) is our best performing, highest power, 2 to 3 kW transducer.It has a depth of 10,000 feet; an operating frequency of 28 to 60 kHz and 150 to 250 kHz; a beamwidth of 5x9 to 11x23 degrees or a constant 25 degrees; and a 0 to 25 degree deadrise.This transducer has a narrow beam low frequencies for deep water performance and high wide frequencies for shallow water performance.Transducer kit comes with installation instructions. Follow the instructions carefully to avoid damaging your boat.WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.