Find more and pay less with this innovative Mark-5X DSI imaging fish finder. High-detail 5" screen has sunlight-enhanced viewing for those ultrabright days. 16-level grayscale display has a 480x480-pixel resolution. Bright white LED screen and keypad backlighting make it visible no matter what time of day. Skimmer® DSI imaging transducer has a built-in water-surface temperature sensor, and is transom and trolling-motor mounting compatible. 4,000-watt peak-to-peak power reaches impressive bottom readings at boat speeds up to 64 kph. Optimum imaging under 13 kph. Unique TrackBack™ feature offers immediate scrollback to review sonar imaging history. Simplified menu with text and icons for easy navigation. Sealed and waterproof. 10-17 vDC power supply.