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A good fish finder is great when you’re on the water, but what if you’re a bank angler or someone who wants a portable option? Enter the Deeper Pro Plus Castable Fish Finder, which is currently on sale at Amazon for just $189—a heck of a deal considering many fish finders cost hundreds or thousands of dollars.

With built-in GPS, an impressive depth range of up to 260 feet, and accurate scanning, the Deeper Pro Plus castable fish finder is one of the best portable fish finders out there. It’s lightweight and easy to cast and connects to your phone via WiFi so you can see all your maps and data in real-time, and even save them for reference later on. The Deeper Pro Plus can also last for hours on a single charge—perfect for an all-day fishing excursion.

Take advantage of this deal while you can. No matter where your next fishing trip takes you, this castable fish finder could be the difference between snagging a lunker or going home empty-handed.