This plastic thru-hull mount transducer performs well at high speeds and is an excellent choice for fiberglass and metal hulls.This 8-pin 300 W transducer has a depth of 900 ft; an operating frequency of 77/200 kHz; a beamwidth of 45/15 degrees; and a 8 to 15 degree deadrise.Transducer kit comes with installation instructions. Follow the instructions carefully to avoid damaging your boat.*Do not use on wood hulls.When using with the echoseries fishfinders, transducer adapter cable part number 010-11947-00 is required.Specifications for 12TRANSDUCER FREQUENCY77/200 kHzTRANSDUCER POWER300 WTRANSDUCER BEAMWIDTH45/15TRANSDUCER MAXIMUM DEPTH900 ft.TRANSDUCER CABLE LENGTH30 ft.TRANSDUCER DEPTH/SPEED/TEMPERATUREDepth and TemperatureTRANSDUCER NUMBER OF PINS8-pinTRANSDUCER SUPPORTED DEADRISE/TRANSOM ANGLES8-15 degree deadriseSpecifications for 20TRANSDUCER FREQUENCY77/200 kHzTRANSDUCER POWER300 WTRANSDUCER BEAMWIDTH45/15TRANSDUCER MAXIMUM DEPTH900 ft.TRANSDUCER CABLE LENGTH30 ft.TRANSDUCER DEPTH/SPEED/TEMPERATUREDepth and TemperatureTRANSDUCER NUMBER OF PINS8-pinTRANSDUCER SUPPORTED DEADRISE/TRANSOM ANGLES16-24 degree deadrise