Lowrance Transom Mount Speed Sensor NMEA 2000

The Lowrance Transom Mount Speed Sensor NMEA 2000 is a transom-mounted paddlewheel transducer designed for anglers and boaters who demand accurate real-time water speed data integrated directly into their marine electronics network. This sensor is essential for modern fishing operations where precise speed control improves trolling consistency, enhances fuel economy calculations, and enables data logging for performance optimization. Whether you're pursuing stripers in tidal rivers or running offshore for pelagics, accurate speed measurement directly impacts your ability to maintain productive presentations and track operational efficiency.

The sensor uses a proven paddlewheel design that measures water flow velocity beneath your transom, converting that data into speed readings transmitted over the NMEA 2000 network backbone. This architecture allows seamless integration with compatible Lowrance chartplotters, fish finders, and autopilot systems, eliminating the need for separate speed displays or analog gauges. When paired with a Fuel Flow Sensor on the same network, the speed sensor enables automatic fuel economy calculations—a critical tool for managing operational costs on long runs. The transom-mount configuration keeps the sensor accessible for seasonal maintenance while maintaining a low hydrodynamic profile that minimizes drag and noise.

Serious anglers and commercial operators benefit most from this sensor when running documented speed-over-ground data through log files for pattern analysis and repeatability. Installation requires transom space and a clear water intake path free from weeds and debris; flush-mount options work best on fiberglass hulls where through-fitting installation is practical. The lightweight 1.5 lb sensor integrates cleanly into existing NMEA 2000 networks, making it ideal for retrofit upgrades to older boats receiving modern Lowrance systems or for new builds standardizing on open-architecture marine networks. Compatibility with all current Lowrance NMEA 2000–capable units ensures long-term usability across system expansions.