Raymarine DST800 Nylon Thru Hull Transducer Depth, Temp, Speed

The Raymarine DST800 Nylon Thru Hull Transducer is a three-in-one marine sensor that delivers simultaneous depth, water temperature, and speed data to compatible Raymarine instrument displays including the ST60, ITC-5, and i50 systems. This proven transducer design combines a durable nylon housing with spade connectors for reliable installation on recreational fishing boats, cruisers, and offshore vessels where consistent sonar performance is essential for navigation and fish finding.

The thru-hull mounting configuration positions the transducer below the hull to capture acoustic returns and speed pulses without the signal losses common to transom-mount designs. The DST800's multi-parameter capability eliminates the need for separate dedicated sensors, simplifying wiring and instrument integration. Spade connector terminals ensure straightforward connection to legacy Raymarine systems that predate modern NMEA protocols, making this transducer valuable for maintaining or upgrading older installations where compatible display heads are still in service.

Weekend anglers upgrading entry-level sonar systems and serious offshore fishermen maintaining established Raymarine setups both rely on the DST800 for accurate depth readings and water temperature data that inform trolling depth, seasonal migration patterns, and structure location. The unit performs across freshwater lakes and coastal saltwater environments where temperature stability and transducer reliability directly impact catch success. Weekend cruisers also benefit from integrated speed data for fuel-consumption calculations and navigation accuracy.

The DST800 represents the entry-level sensor in Raymarine's transducer lineup, designed for boaters who need reliable three-in-one functionality without advanced features like CHIRP frequency modulation or wireless connectivity. This straightforward approach makes it an economical choice for system restoration or backup sensor installation on vessels where ST60 or ITC-5 gauges remain the primary instrument platform.