This fishfinder is very good and does the job well; it has a high resolution high color 480×480 pixel at 256 colors LCD TFT, The screen size is 5 inches diagonal plus with the added 6 background color choices. Depth penetration is approx 2.500 feet with 4 thousand watts peak to peak power plus transducer for offshore downrigger tracking.

Features –
Display
• 5.0″ (12.7cm) diagonal 256-color, liquid crystal TFT display
• 6 background color choices
• Fluorescent cold-cathode screen and keypad backlighting
• High-detail 480×480 pixel resolution
• Wide viewing angles in all light conditions

Performance
• Overlay data
• Depth penetration to 2,500 feet (760 m)
• Dual frequency 200/50 kHz Skimer® transducer with built-in temp/speed/distance readings
• Standard sonar features - Advanced Signal Processing (ASP), COLORLINE, Advanced Fish Symbol I.D, FishTrack, multi-zoom option, sonar alarms, backup memory, and more
• Includes transom-mount sensor for precise trolling speed/distance log readings
• 4,000 watts peak-to-peak power
• FlashGraf LCD flasher sonar graph with COLORLINE