Please kindly see the specification of Portable Fish Finder as followings:
16 Levels GrayscaleBoat Fish Finder FF668C： 1) Display type: 3.5" 16-Levels Grayscale V320xH240 with white LED backlight 2) Superb viewing in direct at sun 3) Multi-language menu(English; Russian; French; Chinese; Japanese; Finnish; Polish; German; Italian; Spanish; Dutch; Korean; Swedish; Greek; Danish) 4) Depth reading from 2.0 to 1500ft (500M) in 1/10th precision 5) 100-level sensitivity setting and multi levels depth range 6) Auto zoom bottom tracking and quick manual zoom 7) Stop chart at any time 8) Big/small fish identification and fish depth indicator 9) User selectable sonar chart mode 10) Kell offset 11) 200KHz / 83KHz duel beam sonar frequency 12) Input power: DC 10 to 18V 13) 1800 watts peak-to-peak power; 240 watts RMS power 14) Transducer: side hull transform mount 15) Water proof connecter between main unit and transducer
