Humminbird Matrix 12 Fish Finder is the practical solution to fish-finding puzzles. The Matrix 12 is the fish finder for the serious fisher. Clearly see structure, baitfish and the game fish they attract all in sharp detail. Solar Echo Enhancement Technology makes detection so sensitive, it can track a jig to over 40 ft and separate targets within 2 1/2". Big display uses Clear Edge Inverse Grayscale to bring faint fish, structure and thermoclines into sharp relief. The Matrix 12 has expansion capabilities so that it can grow with your interests: includes compatibility for a GPS receiver, barometric pressure monitor and wireless sonar link. Also features PC link that allows connection to a computer to save waypoints for later reference and upgrade fish finder software. Measures depth up to 800 ft! The professional features you need: 12 level gray scale high-definition FSTN on 240V x 240H pixel display; 200kHz Single Beam 20 degree Sonar reads down to 800 ft GPS ready trackplotting capable: 750 Waypoints, 20 Routes, 10 Tracks with 2000 Points Each... just plug in your own GPS receiver or a hand-held GPS; Freeze Frame stops display for detailed inspection, with Instant Image Update shows results of setting changes over entire sonar graph; Accelerated Real Time Sonar operates at up to 40 times per second to instantly update action under the boat; Microdynamic transducer design slices through water for reliable readings up to 70 mph; TrueArc Fish Display or switch to Fi
Customer Rating: 
Summary: Great product for a great fishing experience
Comment: I've had this product for quite some time now, and I have to say that I have enjoyed it a lot. The feeling of combining technology and nature makes for a great outdoors experience, and this gadget -while not the best you can find out there- has an excellent adaptability and capacity to add more functionality -like a GPS- which makes for an excellent price/benefit relation.
I have to say that using this fish finder I've caught some fish that I couldn't have otherwise. It helps by telling you where is the fish, depth, speed, etc. It wont get the fish for you, but it will give you eyes under the water.
My only complaint would be that when you turn it on, goes through some sort of auto-adjust process that takes some time to finish. The problem is not the time it takes, but that I have to make the boat go very fast for a while until the unit settles down and starts working properly. I've found that if I don't do this, the unit will never finish the auto-adjust process and it will switch to test-mode after some time.
I can't be sure if this is a malfunction or is the normal procedure of the unit, since I've never had one of these before. However, the manual says nothing about this "need for speed" when turning on the unit. Maybe I got a broken unit? Can't answer that of course, but as I said, it's my only complaint. Besides this, the product fulfilled my expectations completely. I can't wait to plug a GPS on it.
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