
Works great with my Humminbird 899. Just download the software and lakes you need and put them in the fish finder. Make sure you "lock" the Navionics chip if you have 2 slots and your sonar is burning. It's a bit pricey, but worth it for being able to download from anywhere in the US and Canada. I would definitely recommend this product to any angler wanting to learn the depth and contours of your favorite lake. You can also check their website to see if your lake is on their list and whether it's in HD or not.

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