Garmin AIRMAR® B75H (12° Tilt)This bronze thru hull mount transducer is designed to allow both traditional and spread spectrum scanning when used with a compatible sonar. A 600 W transducer with 8 pins, it has a depth of 800 ft; an operating frequency of 130 210 kHz; a beamwidth of 15 9 degrees; and a 6 to 15 degree deadrise. Transducer kit comes with installation instructions. Follow the instructions carefully to avoid damaging your boat.