advanSea Multi S400: Depth & Speed Instrument with Plastic Thru-Hull TDXS

Meet a compact powerhouse designed for both cruisers and racers: the advanSea Multi S400 combines precise depth measurement and water speed in a single, easy-to-read transflective display. Housed in a rugged package from Absolute Marine, this unit eliminates cockpit clutter and keeps essential information front and center so you can focus on trim, tactics, and safe passagemaking.

Crystal-clear visibility in any light

The Multi S400 uses a transflective monochrome LCD with amber backlighting, delivering large, legible digits that stand out in bright sun or fading twilight. With a prominent speed read (32 mm digits) and a depth read (22 mm digits), you can reliably monitor vital data at a glance—without glancing away from the water.

Depth and speed in one durable package

Designed for real-world use, this instrument displays depth (0.5 to 199 m) and water speed (0 to 60 knots) on a single screen, giving you immediate situational awareness. Its dual-readout format helps you make faster decisions on course, line handling, and anchoring strategies, whether you’re chasing a race strategy or plotting a safe harbor approach.

Rugged, weather-ready reliability

Built to endure harsh marine conditions, the Multi S400 features IP66 front-face protection, an anti-fog coating, and a backlit keypad that remains responsive when visibility is compromised. This combination ensures the display stays readable and controls remain accessible, even in spray, rain, or low-light passages.

Flexible connectivity and installation

Comes with a plastic thru-hull TDXS transducer and is compatible with reputable Airmar or Plastimo transducers. It supports standalone operation or integration into NMEA0183 networks for broader system visibility. Installation is straightforward with a 48 mm drill requirement, a rear locking collar, and an O-ring bulkhead mount, making it a clean, compact addition to the helm or electronics bay.

Upgrade-ready and highly compatible

For those upgrading older systems, the Multi S400 offers a seamless replacement path for Navman 3100 and Northstar 310 series units, enabling you to modernize without changing your existing transducer setup. Standalone mode and flexible I/O options let you deploy the unit wherever it fits best—on a busy race boat or a cruising cruiser—without a headache.

Smart data, smart features

• Advanced data handling: Depth, speed, and depth-speed data delivered through an elegant, single display with NMEA0183 I/O compatibility for smooth integration.
• Alarms and safety: Deep/shallow and high/low depth alerts, plus low battery warnings to help you avoid surprises on the water.
• Simulated mode: Training and setup become easier with a realistic simulator that helps you fine-tune thresholds before heading offshore.

Ideal for serious sailors who demand dependable data

Racers benefit from watching depth and speed side by side for faster decisions on line handling, course adjustments, and optimal braking or powering. Cruisers gain confidence with a reliable depth read to anchor safely, avoid shallow spots, and optimize fuel efficiency by maintaining appropriate speed relative to depth. The combination of transflective readability, rugged construction, and versatile network options makes this instrument a practical upgrade for any watercraft.

Peace of mind comes standard

Absolute Marine backs the advanSea Multi S400 with a two-year warranty and worldwide Plastimo support, ensuring dependable service wherever your voyage takes you. With a compact external unit designed for straightforward helm or electronics-bay integration, you can trust this instrument to perform when it matters most.