The ST850 is a low-profile, retractable, thru-hull sensor that computes accurate speed and temperature data and sends it to any NMEA 2000® network. These low-profile units are nearly flush, minimizing drag with only 5 mm (3/16") extending outside of the hull. The housing features a water valve which minimizes water ingress into the boat when the retractable insert is being replaced with the blanking plug.
Airmar's Smart™ Sensors have embedded microelectronics. The signals from the speed and temperature sensors are processed right inside the housing itself. All that is needed to receive data is a single cable into a compatible network or display. Available as an analog sensor or a digital Smart Sensor that can output in NMEA 0183 or NMEA 2000 protocol.
Speed and fast-response water-temperature sensing
Speed range: 2 to 45 knots (2 to 52 MPH)
NMEA 2000 protocol
Retractable insert in a low-profile housing with a water valve
Available in a plastic (P17) or bronze (B17) housing
Retrofits into B617V, P617V, SS617V, P217, P314, or ST650 housing
NMEA 2000 certified cable
Functions: Speed, Temperature
Mounting Style: Low Profile Thru-Hull
Power Rating: N/A
Protocol Output: NMEA 2000®
Housing: Plastic
Hull Material: Fiberglass or metal
Hole Size: 51 mm (2")
Retractable housing: Yes
Cable-Length: 6 m (20') NMEA 2000® cable
Common Use: Cruising/Racing Sailboats, Leisure/Yachting, Fishing