Airmar ST850 NMEA 2000 Smart Speed and Temperature Sensor Stainless Housing

Speed and Temperature

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.

• Brand: Airmar Technology
• Display Connector: N2 Micro
• Housing Material: Stainless Steel
• Mounting Style: Low Profile Thru-Hull
• Weight: 1.3 kg (2.8 lb.)
• Common Use: Cruising/Racing Sailboats, Leisure/Yachting, Fishing
• Transducer Functions: Speed, Temperature
• Water Temperature: -10 degrees to 40 degreesC (14 degrees to 104 degreesF)
• Country of Origin: USA
• Voltage: 9 to 16 VDC
• Hole Size: 51 mm (2')
• Power Rating: N/A
• Usable Shaft Length: 55 mm (2.15')
• Cable-Length: 6 m (20') NMEA 2000 cable, 6 m (20')
• Hull Material: All hull materials
• Comm Method: NMEA 2000
• Tilted Element: No
• Temperature Accuracy: plus or minus 0.5 degreesC (plus or minus 1.8 degreesF)
• Speed Range: 2 to 45 knots (2 to 52 MPH)
• Retractable housing: Yes
• Retrofits: Retrofits into B617V, P617V, SS617V, P217, P314 or ST650 housing
• Pulses: 17,000 p/nm (4.8 Hz per knot)-p/nm = pulses per nautical mile
• Data Rate: 1X per second