The Garmin Echo 551dv is exactly what you are looking for in a depth and fish finder. All in one HDID 77/200 kHz and DownVu transducer with transom. The good things about that it can make better is side imaging. Its unit was very friendly, there was couple of buttons, plug and play. Also its screen graphics and shallow warning is great. Screen is very clear and easy to see even in the bright sun light . It works well for depth readings where it is not shallow or weedy.
Specifications
Display Color: VGADimensions 1.8 x 6 x 5.9 inches
Display size: 2.9” x 4.0” (7.4 x 10.16 cm); 5” diag, (12.7 cm)
Display resolution: 480 x 640 pixels
Weight: 1.1 pounds
Model: Echo 551DV
Brand: Garmin
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Fish finder Features
• Split-screen zoom.
• Ultra scroll (displays fish targets at higher boat speeds).
• Fish Symbol ID (helps identify fish targets).
• Auto Gain Technology (minimizes clutter, maximizes targets)
• Adjustable depth line (measures depth of underwater objects).
• A-scope (real time display of fish passing through transducer beam).
• Water temperature sensor included.
• Water speed capable (displays speed on water).
Pro’s:-
• All in one transducer HD-ID and DownVu transducer.• Clear colored screen reading.
• Great screen graphics and shallow warning.
• Fast installation.
Con’s:-
• Cable is only 20' long.• Not being able to increase the sound volume for the alerts and alarms.
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Frequently Asked Questions (FAQ)
Question: How long is the transducer cable?
Answer: It's about 20' long.
Question: Can this be mounted on a pontoon boat transom? So close to the engine?
Answer: Yes, You can.
Question: Does this unit display mph?
Answer: The unit will display MPH but you have to buy the speed sensor. It installs on the transom the same way the transponder does with its own wire.
Question: Can this GPS plot a course, and does it come preloaded with maps?
Answer: No, you need a more expensive on for that.
Question: Will a trolling motor mounted transducer work properly when the motor is running?
Answer: Yes works perfect no prop noise.
