Furuno Smart Sensor DT-800MSF - Thru-Hull Transducer

Unlock Precise Depth and Temperature Readings with the Furuno DT-800MSF

Imagine navigating shallow bays or tracking fish in coastal waters with confidence—every depth reading crystal clear, every temperature shift instantly captured. The Furuno DT-800MSF thru-hull transducer makes this a reality, blending Airmar's innovative Broadband Ceramic Technology with a powerful 235 kHz element. This setup delivers sharper resolution for spotting bottom structure while maintaining top sensitivity, even in challenging conditions. With a robust 100-watt RMS output, it nails depths from just 0.45 meters (1.4 feet) up to an impressive 180 meters (600 feet), perfect for everything from inland lakes to offshore adventures.

What sets this smart sensor apart is its seamless integration into your vessel's electronics. Housed in a durable bronze B617V-style low-profile shell, it combines depth and fast-response temperature sensing in one compact unit. The urethane acoustic window ensures reliable performance through hulls up to 3 meters deep, and its NMEA 2000 compatibility means plug-and-play connectivity with modern multifunction displays.

Standout Features That Deliver Real-World Performance

• Depth and Temperature Combo: One thru-hull mount handles both, saving space and simplifying installs. Temperature accuracy hits ±0.2°C (±0.1°F) for spotting thermoclines that attract game fish.
• High-Resolution Beam: 12-degree beamwidth focuses energy for detailed bottom contours, ideal for structure fishing or docking in tight spots.
• Rapid Updates: 1 Hz data refresh keeps your screen live, with a pulse rate of 20,000 pulses per nautical mile (about 5.6 Hz per knot) for smooth tracking.
• Versatile Power: Runs on 10-25 VDC at full output, drawing just 40 mA—efficient for battery-powered setups. NMEA 2000 Load Equivalency Number (LEN) of 4 fits standard networks without overload.
• Built Tough: Bronze housing withstands marine abuse, backed by a limited 3-year warranty. Weighs only 1.5 kg (3.4 lb) for easy handling.

Key Technical Specs at a Glance

Effortless Installation and Everyday Reliability

Installing the DT-800MSF is straightforward for DIY boaters or pros. Drill a clean thru-hull hole (typically 2-inch), bed it with marine sealant, and secure the low-profile housing flush against the hull. Its 5-pin connector pairs directly with Furuno sounders or NMEA 2000 backbones—add a drop cable for instant network access. Pro tip: Align it parallel to the waterline for optimal beam coverage, avoiding strakes or thru-hulls that could cause interference. Once mounted, it shrugs off fouling thanks to the urethane lens, delivering consistent pings season after season.

Boaters rave about its shallow-water prowess; that minimal 0.45-meter detection warns of hazards before they become problems. Pair it with Furuno's NavNet series for overlaid depth shading that transforms your chartplotter into a safety superpower.

Perfect for Anglers, Cruisers, and Commercial Ops

Whether you're chasing bass in skinny water, cruising the Great Lakes, or running commercial charters, this transducer shines. Anglers love the temp sensor for baitfish location; sailors appreciate the depth alarms for uncharted reefs; skippers value the network data sharing across crew stations. It's not just gear—it's the edge that keeps you ahead of the water.

Why Boat Owners Trust the Furuno DT-800MSF Over Others

In a sea of transducers, the DT-800MSF stands tall with its broadband tech that punches through noise for cleaner returns. Unlike narrower high-frequency units, its 235 kHz sweet spot balances range and detail without the power-hungry demands of dual-band setups. Bronze construction laughs at corrosion, and NMEA 2000 future-proofs your investment. Real users report fewer false readings in choppy seas, making it a smart pick for serious mariners.