Furuno ST-02MSB Brz Spd/Tmp TH

The Furuno ST-02MSB Bronze Speed and Temperature Sensor is an essential instrument transducer for serious recreational and professional anglers who demand real-time water intelligence. This bronze-hull sensor combines dual functionality—delivering precise water speed and temperature data directly to your Furuno chartplotter, GPS, or fish finder display. If you're running long offshore routes, navigating shallow bays, or simply trying to locate the thermal breaks where fish congregate, this sensor eliminates guesswork and turns raw data into actionable fishing advantage.

Built with bronze construction for superior corrosion resistance in saltwater environments, the ST-02MSB uses proven paddle-wheel speed measurement and thermistor-based temperature sensing to deliver reliable readings across diverse conditions. The bronze housing resists galvanic corrosion far better than stainless steel in immersion applications, and the sensor integrates seamlessly with Furuno's marine electronics ecosystem via standard NMEA 0183 connectivity. Installation through the hull requires a through-hole thimble mount, creating a permanent, vibration-free connection that won't degrade signal integrity even in heavy seas or extended high-speed runs.

The ST-02MSB is ideal for fishing vessels, charter boats, and cruising yachts running Furuno navigation and sounder systems where water temperature and speed data are mission-critical. Anglers benefit from accurate thermocline identification, while cruisers gain reliable SOG (speed over ground) verification independent of GPS. Compatibility extends across Furuno's full range of multifunction displays, standalone GPS chartplotters, and integrated fish finders; however, proper through-hull installation and NMEA connection configuration are essential for optimal performance and require basic marine wiring knowledge or professional installer support.