The ST850 is our standard, thru-hull speed sensor. Digital signal processing
inside the housing provides
speed and temperature
data to a chart plotter,
radar screen, or digital
display in either analog or NMEA 2000® formats.
The plastic P17, bronze B17, and stainless steel SS577 housing options are available to meet most hull
requirements. These low-profile units are nearly
flush and minimize drag with only 5 mm (3/16") extending
outside of the hull.
Manufacturer Part Numbers
Furuno Analog Plastic—ST-02PSB——Airmar—31-590-2-41
Furuno Analog Bronze—ST-02MSB——Airmar—31-590-2-51