ST850 Smart™ Sensor Thru-hull
Part NumberST850
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 0183 display or 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)
- Available as an analog or digital Smart Sensor that outputs data in NMEA 0183 or 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 or NMEA 0183 cable
- Functions: Speed, TemperatureMounting Style: Low Profile Thru-HullPower Rating: N/AProtocol Output: NMEA 2000®Housing: Available in a plastic (P17) or bronze (B17) housing with water valveHull Material: Plastic: Fiberglass or metal, Bronze: Fiberglass or woodHole Size: 51 mm (2")Retractable housing: YesCable-Length: 6 m (20') NMEA 2000® cableCommon Use: Cruising/Racing Sailboats, Leisure/Yachting, FishingData Rate: 1X per secondPulses: 17,000 p/nm* (4.8 Hz per knot)—*p/nm = pulses per nautical mileRetrofits: Retrofits into B617V, P617V, SS617V, P217, P314 or ST650 housingSpeed Range: 2 to 45 knots (2 to 52 MPH)Temperature Accuracy: ±0.5°C (±1.8°F)Tilted Element: NoUsable Shaft Length: 57 mm (2.25")Voltage: 9 to 16 VDCWater Temperature: -10° to 40°C (14° to 104°F)Weight: Plastic: 0.7 kg (1.4 lb.), Bronze: 1.3 kg (2.8 lb.)
