Raymarine DST800 Nylon Thru Hull Transducer Depth, Temp, Speed

Equip your vessel with reliable underwater data using the Raymarine DST800, a versatile nylon thru-hull transducer that delivers precise depth readings, speed through water, and water temperature in one compact unit. Ideal for sailors and powerboaters seeking straightforward integration with legacy and modern Raymarine displays, this transducer stands out for its low-profile design that minimizes drag while providing essential navigation insights during any voyage.

Why Boaters Trust the DST800 Thru-Hull Transducer

Navigating challenging waters demands accurate, real-time information. The DST800 excels in delivering just that, combining three critical sensors into a single 2-inch thru-hull mount. Its wide, fan-shaped beam ensures consistent performance on hulls with deadrise angles up to 20 degrees, even when the boat heels over in choppy conditions. Crafted from high-strength plastic, it suits fiberglass or metal hulls, offering durability without the weight of bronze alternatives.

Unlike in-hull options that can suffer from signal distortion through thick hulls, the thru-hull installation of the DST800 provides direct water contact for superior accuracy. Boaters appreciate its compatibility with a range of Raymarine instruments, making it a smart upgrade or replacement for aging setups. Whether you're monitoring depth in shallow bays, tracking speed for optimal trim, or gauging water temperature for fishing spots, this transducer keeps you informed without unnecessary complexity.

Performance Specifications at a Glance

Standout Features for Everyday Boating

• All-in-One Convenience: Depth, speed through water, and temperature from a streamlined 2-inch fitting—perfect for space-conscious installations.
• Optimized Beam Pattern: The fan-shaped coverage thrives on high-deadrise hulls, maintaining reliable data when the boat lists.
• Rugged Construction: Impact-resistant plastic body handles the rigors of marine environments, from coastal cruising to offshore adventures.
• Analog Simplicity: Works seamlessly with classic Raymarine systems, ensuring no need for costly digital overhauls.
• Extended Reach: Generous cabling allows flexible routing to your helm station.

Seamless Compatibility with Raymarine Instruments

Plug-and-play integration is a hallmark of the DST800. Connect it directly to instruments like the i40 Bidata, i50 Tridata, or use the iTC-5 converter for broader system compatibility. It's also a reliable match for ST40, ST60, ST70, i70 series, supporting spade lug connections for quick setup. This versatility makes it a go-to choice for retrofitting older boats or enhancing new builds with proven analog technology.

Installation and Maintenance Tips for Longevity

Installing a thru-hull transducer like the DST800 requires careful hull preparation to avoid leaks and ensure optimal performance. Select a forward-facing location below the waterline, away from strakes or thru-hulls that could interfere with the beam. Fairing blocks help align it perpendicular to the water flow on angled hulls, maximizing speed and depth accuracy.

For maintenance, periodically clean the face to remove marine growth, which can degrade signals. The plastic housing resists fouling better than metal, but antifouling paint compatible with transducers keeps it pristine. During haul-outs, inspect the cable for chafe and secure connections to prevent corrosion.

Common Applications and Real-World Benefits

Sailors rely on the DST800's speed-through-water data to calculate true boat speed, aiding sail trim and tactical decisions in races. Powerboaters use depth alarms to navigate shallows safely, while anglers track temperature shifts for targeting species. Its low drag profile conserves fuel, and the temp sensor helps log water conditions for trip planning or environmental monitoring.