Boat Transducers Built for Clear Bottom Readings and Better Days on the Water

If your fishfinder is the brain, your boat transducers are the senses. They’re the gear doing the hard work below the surface—reading depth, tracking structure, and helping you dial in the kind of details that turn a slow day into a “we’re gonna need a bigger cooler” day. At Bottom Line Discount Marine, we stock a deep lineup of boat transducers and accessories from the big names boaters trust, with the same products everyone else sells—only backed by fast service, expert help, and a mission that gives back.

Whether you’re replacing a tired boat transducer, upgrading for sharper CHIRP performance, or rigging a new install from scratch, choosing the right transducer for boat use matters. A properly matched marine transducer can improve target separation, reduce noise, and deliver cleaner returns at speed. And if you’ve ever fiddled with settings while staring at a blank screen, you already know: when the transducer isn’t right for the job, nothing else feels right either.

Choosing Boat Transducers by Mount Style and How You Run Your Boat

Not every transducer on a boat lives in the same place, and that’s a good thing. We carry options designed for how you actually use your rig—whether it’s a shallow-water hopper, a deep-lake prowler, or an offshore runner that wants stable readings at speed. Popular styles include transom-mount, thru-hull, in-hull, trolling motor mounts, and specialty setups. If you’re not sure which transducer for a boat makes sense, think about your hull type, typical speeds, and the water you fish most.

Transom-mount options for easy installation and straightforward replacement.
Thru-hull choices for serious performance and clean readings in rough conditions.
In-hull solutions for protected installs on compatible hulls.
Trolling motor mounts for anglers who live on the bow.
Portable and specialty options for unique setups and seasonal needs.

No matter which direction you go, the goal is the same: a transducer on boat that’s mounted correctly and matched to your display so it can do what it was built to do. This isn’t just any transducer device—it’s the link between what’s under you and what you know.

Marine Transducers That Match Your Electronics and Your Expectations

We carry a wide range of marine transducers compatible with many of today’s most popular marine electronics ecosystems, including options across major brands and connection types. Whether you’re looking for a reliable replacement transducer for boats already rigged to your system or a performance upgrade, our inventory includes everything from everyday transducers to advanced CHIRP and scanning-style solutions.

And yes—we’ve heard every troubleshooting story in the book. If you’ve ever joked, “It’s the transducer… transducer… transducer transducer,” while chasing down a wiring issue, you’re in good company. Our team can help you sort out fitment, mounts, connectors, and the little details that keep installs clean and readings crisp.

Boat Transducers with Purpose: Great Service, Great Pricing, Real Impact

At Bottom Line Discount Marine, we believe your purchase should do more than outfit your boat. Along with great pricing, free shipping on qualifying orders, and knowledgeable support, we back our community through charities that matter—supporting veterans, helping kids learn the outdoors, and walking alongside those in recovery. When you shop our boat transducers, you’re not just upgrading your electronics—you’re helping fund programs like Rifles to Rods, The Fishing Academy, and Reeling in Serenity.

Browse our collection, choose the right transducer marine solution for your setup, and get back to what it’s all about: safe runs, solid readings, and more good days on the water.

Function	Depth and Temperature
Frequency	CHIRP 130 - 210 kHz
Material	Bronze
RMS Power	1 kW
Temp. sensor	NTC

Echonautics Cb131h1kw 1kw 130-210khz High Chirp Bronze Thru-hull

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