Airmar P79, adjustable in-hull, depth, 45/12 deg, 25ft cable, plastic, 6-pinThis entry level in hull transducer with an adjustable deadrise angle makes installation a snap. The 8 pin 600 W transducer has a depth of 800 to 1,200 ft; an operating frequency of 50 to 200 kHz; a beamwidth of 45 to 12 degrees; and a 0 to 22 degree deadrise. Transducer kit comes with installation instructions. Follow the instructions carefully to avoid damaging your boat. Fiberglass should be no more than 5 8" thick. Not recommended for cored hulls.