Airmar Transducers

Airmar ST850 w/Plastic Thru Hull - Furuno 6 Pin Connector

Brand: Airmar
Part Number: ST850-P-6FUR

The ST850 is Airmar's 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 analog format. 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.


  • Speed and temperature

  • Retractable plastic, bronze, or stainless steel housings with valve sleeve

  • ST850—Retrofits into Airmar P17 and B17 housings

  • 9 m (30’) Analog cable

  • Speed Range: 2 knots to 45 knots (2 MPH to 52 MPH)