A replacement for the ST800, Raymarine's ST900 Speed and temperature sensor takes speed performance to the new level. Featuring the new Gen 2 paddle wheel, ST900 transducer outperforms all other paddlewheel sensors for responsive startup and linearity. In addition, the paddlewheel begins delivering accurate speed reporting as low as 0.3 knots, and will maintain smooth speed output up to 45 knots.

Technical Specifications:

Material: Bronze.
Records: Speed and temperature.
Hull Material: Fibreglass or wood.
Cable Length: 45ft.
Deadrise Angles: 0-22 degrees.