The ST850 is an analog, retractable speed and temperature sensor. The sensor fits inside a low profile plastic, bronze or stainless steel thru hull housing that is nearly flush to the hull, with only 5 mm (3/16”) extending outside of the hull. The housing has a valve assembly that helps to minimize water ingress in the bilge when the sensor is removed for routine maintenance of the paddlewheel.
Speed and fast-response water-temperature sensing
Speed range from 2 to 45 knots (2 to 52 MPH)
Analog output
Retractable insert in a low-profile plastic, bronze or stainless steel housing with a water valve
Functions: Speed, Temperature
Mounting Style: Low Profile Thru-Hull
Protocol Output: Analog
Housing: Bronze, Plastic or Stainless Steel
Hull Material: Compatible w/ all hull materials
Hole Size: 51 mm (2")
Retractable housing: Yes
Bluetooth Capable: No
Common Use: Cruising/Racing Sailboats, Leisure/Yachting
Retrofits: Fits most Airmar 2" housings
Speed Range: 2 to 45 knots (2 to 52 MPH)