Unlock Crystal-Clear Underwater Insights with the RVM-420 Thru-Hull Transducer Pair

Imagine gliding through open waters, effortlessly spotting fish hiding near structure, mapping the seafloor in stunning 3D detail, and navigating shallow areas with confidence—all powered by cutting-edge sonar technology. The Raymarine RVM-420 stainless steel thru-hull transducer pair delivers exactly that, blending RealVision MAX capabilities into a sleek, drag-free design tailored for inboard and outboard powerboats. Whether you're chasing trophy fish or charting unfamiliar bays, this port-and-starboard duo transforms your helm display into a window to the underwater world.

Crafted from rugged stainless steel, the RVM-420 withstands the harshest marine environments while maintaining peak performance on fiberglass, wood, or metal hulls. Its low-profile housing minimizes water resistance and cavitation, ensuring smooth, high-speed operation without the need for bulky fairing blocks.

Advanced Sonar Features That Set It Apart

• RealVision MAX Integration: Combines DownVision™ for hyper-detailed bottom tracking, SideVision™ for wide-area scanning up to 300 feet on each side, 600-Watt traditional CHIRP for precise fish targeting, and immersive 3D sonar views.
• Built-in AHRS Stabilization: An onboard attitude and heading reference system automatically adjusts for boat roll, pitch, and yaw, delivering rock-steady imagery even in choppy seas.
• Fast-Response Temperature Sensor: Provides instant water temp readings to help you locate bait schools and thermoclines.
• 20° Tilted Elements: Precision-engineered offset for hulls with 15° to 25° deadrise, aligning beams perfectly perpendicular to the waterline for optimal coverage and sensitivity.
• High-Speed Housing: Features an isolation plate to reduce noise and vibration, paired with a hydrodynamic nose cone for speeds over 30 knots.

These aren't just specs—they're game-changers for serious anglers and navigators who demand reliability when it counts.

Effortless Installation and Seamless Connectivity

The genius of the RVM-420 lies in its thru-hull design with pre-tilted port and starboard elements. No more wrestling with custom fairings or compromising beam angles—simply mount through the hull, connect the included Y-cable harness, and extend with the 8-meter cable for a total 10-meter reach. This setup eliminates turbulence, boosts signal clarity, and keeps your hull lines clean.

Perfectly matched for Raymarine's latest ecosystem, it pairs flawlessly with Axiom 2 Pro RVM chartplotters and the RVM1600 sounder module. Plug-and-play integration means you're up and scanning in minutes, with full support for intuitive touchscreen controls and customizable sonar palettes.

Key Specifications at a Glance

What's Included for a Complete Setup

• RVM-420 Port Transducer
• RVM-420 Starboard Transducer
• Y-Cable Harness (2m)
• 8-Meter Extension Cable

Everything you need to mount, connect, and start exploring—straight out of the box.

Real-World Applications: From Weekend Warrior to Pro Captain

For offshore anglers, SideVision™ reveals wrecks and reefs teeming with life, while DownVision™ pinpoints drop-offs and ledges invisible to standard sonar. Coastal cruisers benefit from stabilized 3D charts that update in real-time, avoiding hazards in low visibility. Even recreational boaters appreciate the water temp data for planning perfect days on the water. Users rave about how the tilted design delivers sharper returns at all speeds, turning guesswork into precision.

Frequently Asked Questions