Eagle FishMark 640c Fish Finder

Display:

Ultra-bright, 5" (12.7 cm) diagonal screen
256-color, enhanced TFT LCD
High-definition 640Vx480H resolution
Fluorescent cold-cathode backlit screen and keypad
Unique Resize Window to adjust split-screen display
Overlay Data feature displays select digital readings over the sonar graph

Sonar:

Depth capability to 800 ft* (244 m) with 1500 watts of peak-to-peak power (187W RMS)
High-performance, low-profile 200 kHz Skimmer® transducer with built-in temp sensor delivers up to 60� of fish detection area with high sensitivity settings - Operates at boat speeds up to 70 mph (61 kts) - Variety of other transducer purchase options available
Trolling speed and distance log readings available with purchase of an optional sensor
Adjustable ping speed with automatic HyperScroll ™ to display fish targets at higher boat speeds
Choice of six color display modes to match outdoor light conditions, and to help reveal fish hidden in underwater cover
FasTrack™ vertical bar flasher displays real-time sonar returns and relative strength of each target
Advanced Signal Processing (ASP™) automatically adjusts your settings for the best sonar picture
COLORLINE™ separates fish from nearby structure and bottom, and helps define bottom composition and hardness
Advanced Fish I.D.™ shows underwater targets in different sizes of fish symbols
FishTrack™ displays target depth readings above fish symbols
Surface water temperature readings come from a built-in temp sensor in the transducer
Zoom with zoom bottom tracking and easy zoom-in/out control
Selective on/off sonar alarms: Shallow, Deep, Fish and Zone

Performance:

Instant screen updates during depth range changes for uninterrupted viewing
Easy to connect/disconnect, self-cleaning uniplug connectors
Internal back-up memory for key sonar settings
Rugged, reliable, completely sealed and waterproof casing, even for use in harsh saltwater environments
Full one-year warranty
* Actual depth capabilities depend on transducer configuration and installation, bottom composition and water conditions. All sonar units typically read deeper in fresh water than salt water