Raymarine Sounder Modules

Raymarine Sounder Modules: Precision Fish-Finding for Every Angler

When it comes to reading what lies beneath the surface, few names carry the authority of Raymarine. Sounder modules are the backbone of any serious onboard sonar system — standalone black-box units that plug into a compatible chartplotter or multifunction display to deliver dedicated, high-performance sonar capability without replacing your existing helm setup. Raymarine has been engineering sonar technology since its earliest days, with roots that trace back to 1923 when the first commercial echosounder was developed, making them uniquely qualified to push the technology forward.

A Lineup Built Around CHIRP Innovation

Raymarine sounder modules are built around CHIRP (Compressed High Intensity Radar Pulse) technology — a method that transmits across a wide spectrum of frequencies rather than a single frequency with each pulse. The result is dramatically higher resolution, better target separation, and more reliable bottom tracking across a wider range of depths and conditions. This CHIRP foundation runs through Raymarine's entire sounder module lineup, from entry-level to professional-grade units.

• CP370 ClearPulse™ Sonar Module: The CP370 delivers up to 1,000 watts of power and operates at 200 kHz for inshore use and 50 kHz for offshore fishing, using Raymarine's ClearPulse™ digital sonar processing to intelligently manage sonar parameters automatically — so anglers spend more time fishing and less time adjusting settings.
• CP470 CHIRP Sonar Module: Designed for offshore use and tough conditions, the CP470 features an advanced wide-spectrum CHIRP transceiver capable of seeing through dense schools of baitfish, identifying thermoclines, and tracking the seafloor down to 10,000 feet (3,000 meters) across two adjustable CHIRP sonar channels.
• CP570 Professional CHIRP Sonar Module: Engineered for the serious angler, the CP570 offers two fully independent 2 kW sonar channels for a combined output of up to 4 kW — allowing simultaneous hunting in different parts of the water column with best-in-class target separation.
• RVX1000 High-Performance 3D Sonar Module: The flagship of the lineup, the RVX1000 packs RealVision 3D, DownVision, SideVision, and High CHIRP sonar into a single remotely mounted black-box module — delivering all-in-one sonar performance across five channels for both inshore and offshore fishing.
• CP100 DownVision Sonar Module: An ideal choice for freshwater anglers, the CP100 brings CHIRP DownVision technology to Raymarine chartplotter displays, producing a photo-like view of bottom structure while simultaneously targeting fish on a dual-channel system.

Black-Box Design: Flexibility at the Helm

One of the key advantages of Raymarine's sounder module approach is modularity. Rather than replacing an entire chartplotter to gain sonar capability, these black-box units connect via Raymarine's network to extend the sonar power of compatible Axiom and other multifunction displays. This makes them an excellent upgrade path for boaters who already have a preferred helm display but want to add or enhance their fish-finding capabilities. Features like Sonar Scroll Back — which lets you rewind, pause, and replay up to 10 minutes of sonar history — and TruZoom™ magnification add a layer of analysis that helps anglers make smarter decisions on the water.

Whether you fish inshore flats, deep offshore canyons, or freshwater lakes, Raymarine offers a sounder module scaled to the challenge. Explore the full selection of Sounder Modules to find the right unit for your vessel and fishing style.