Garmin Plastic Thru-hull Mount Transducer with Depth & Temperature - Airmar 509LH
This all-in-one transducer for popular fishing frequencies (28, 38, 50 and 200) is the best performing, highest power, 2 to 3 kW transducer.
It has a depth of 10,000 ft; an operating frequency of 28 to 60 kHz and 130 to 210 kHz; a beamwidth of 5x9 to 11x23 degrees and 4 to 8 degrees; and a 0 to 25 degree deadrise.
This transducer has a very narrow beam at both low and high frequencies for excellent deep water performance.
Transducer kit comes with installation instructions. Follow the instructions carefully to avoid damaging your boat.
*Not the best choice for those who primarily fish in shallow water.