Lowrance Sounder Modules

Lowrance Sounder Modules: Expanding What You Can See Underwater

When it comes to pushing the boundaries of what anglers can detect beneath the surface, few names carry more authority than Lowrance. Since first pioneering recreational fish-finding technology 60 years ago, Lowrance has changed the landscape of the marine electronics industry with continued sonar and transducer innovation. Their sounder modules represent a key piece of that legacy — purpose-built black box units that unlock advanced sonar capabilities on compatible Lowrance displays without requiring a full system replacement.

What Is a Sounder Module?

A sounder module is a dedicated external processing unit that connects to a compatible chartplotter or fishfinder display to add or upgrade sonar functionality. Rather than relying solely on built-in sonar, a module gives anglers the flexibility to bolt on best-in-class sonar technologies as they evolve. Lowrance has made this modular approach central to its ecosystem, letting users scale up their system's capabilities over time. The picture-like, three-dimensional views from Lowrance's StructureScan 3D system are delivered via a combination of a compatible display, transducer, and dedicated module.

ActiveTarget 2 Live Sonar: The Flagship Sounder Module

The most celebrated sounder module in the Lowrance lineup is the ActiveTarget® 2 Live Sonar system. It delivers the clearest live-action underwater views of fish and structure ahead, below, or to the sides of your boat. Offering three viewing options, ActiveTarget can be set to Forward, Down, or Scout™ mode, giving anglers comprehensive situational awareness around the boat regardless of fishing conditions.

High-resolution, live-action images clearly reveal what's happening underwater in real time, with the widest underwater images for quicker interpretation — including Forward, Down, and Scout views — and the ability to see multiple views simultaneously. This allows anglers to quickly recognize if a lure presentation is working or if an adjustment is needed to trigger a strike — information that is harder to get from traditional sonar or structure imaging.

For those who want even more coverage, the ActiveTarget® 2 XL transducer pairs with the same module to expand the view further. It delivers full 180° live views across Forward, Down, and Scout modes — all from a single transducer.

Broad Compatibility Across the Lowrance Ecosystem

One of the most practical advantages of Lowrance sounder modules is their wide compatibility. ActiveTarget 2 is compatible with Lowrance HDS PRO, HDS LIVE, Elite FS, and Simrad NSS evo3 & NSS evo3S, NSO evo3 & NSO evo3S systems. This makes it an accessible upgrade path whether you're running a tournament-grade setup or a mid-range display. The ActiveTarget Live Sonar system provides connectivity with a wider range of displays and pricing options, removing barriers to entry for serious anglers who want live sonar performance.

Why Choose Lowrance Sounder Modules?

Lowrance CHIRP and Broadband Sounder sonar features exclusive Advanced Signal Processing (ASP™), and their black box module approach means that same engineering philosophy extends to every add-on sonar system they build. Whether you fish freshwater structure, open water, or through the ice, Lowrance sounder modules are engineered to fit seamlessly into a broader, connected marine electronics setup. Explore the full Sounder Modules category to find the right module for your display and fishing style.