This dual beam transducer replaces the one that comes with your echo™ series fish finder.
A 4-pin 500 W transducer with a maximum depth of 900 feet (274 m), an operating frequency of 77 to 200 kHz, a beam width of 45 to 15 degrees, and can be mounted on a transom of 0 to 70 degrees.
The transducer kit comes with installation instructions. Follow the instructions carefully to avoid damaging the boat.