Humminbird 4089601 571 HD DI Fish Finder (5" LCD, Down Imaging/DualBeam PLUS, Transducer, 350 Ft DI, 600 Ft 2D) Depth: 250 ft (DI) 600 feet Mounting: Quick Disconnect or In-dash Down Imaging and DualBeam PLUS SONAR with SwitchFire 5 inch monochrome HD display Temperature 5-inch 16 Level Grayscale FSTN LCD Display (320Hx640V) Down Imaging/DualBeam PLUS, 350 ft (DI) & 600 ft (2D) Power Output RMS 500 Watts, Peak to Peak 4,000 Watts Built In Transducer, Quick Disconnect, Real Time Sonar Sonar Frequency 455/800/200/455 kHz, Power Draw 200 mA