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Airmar UST800 Ultrasonic Smart Sensor, NMEA 2000, Bronze Housing, ST


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Airmar UST800 Ultrasonic Smart™ Sensor, NMEA 2000, Bronze Housing, ST

Airmar’s patented UST800 just turned your maintenance time into more cruising time—and made your boat smarter too. Get ultrasonic speed and temperature in a single thru-hull housing with no moving parts. This sensor is a high-precision, low-maintenance solution for use on power and sail boats of all types and sizes. Say goodbye to paddlewheel maintenance and hello to Smart technology, from the company who invented the Smart™ Sensor.


  • Ultrasonic speed and fast-response water-temperature sensing
  • Single housing with no moving parts—no paddlewheel
  • Speed range from 0.1 to 50 knots (0.1 to 57 MPH)
  • Adapts automatically to increases in speed so accuracy remains constant
  • Advanced filtering and sampling rates for increased accuracy at all speeds
  • Retractable plastic insert in a low-profile bronze housing with a water valve
  • Retrofits into Airmar’s plastic (P120) or bronze (B120) housing
  • Airmar's Smart™ Sensor technology


  • Brand: Airmar Technology
  • Acoustic Window: Urethane
  • Cable-Length: 6 m (20') NMEA 2000® cable
  • Comm Method: NMEA 2000®
  • Common Use: Cruising/Racing Sailboats, Leisure/Yachting, Fishing
  • Country of Origin: USA
  • Data Rate: Up to 10 times per second
  • Display Connector: N2 Micro
  • Hole Size: 51 mm (2")
  • Housing Material: Bronze
  • Hull Material: Fiberglass or wood
  • Mounting Style: Low Profile Thru-Hull
  • NMEA 2000 LEN: 7
  • Power Rating: N/A
  • Retractable housing: Yes
  • Retrofits: Retrofits into AIRMAR P120, B120 housings
  • Single or Dual Frequency: Conventional Single Frequency
  • Speed Range: 0.1 to 50 knots (0.1 to 57 MPH)
  • Temperature Accuracy: ±0.5°C (±1.8°F)
  • Tilted Element: No
  • Transducer Functions: Speed, Temperature
  • Usable Shaft Length: 57 mm (2.25")
  • Voltage: 9 to 16 VDC
  • Water Temperature: -10° to 40°C (14° to 104°F)
  • Weight: 1.8 kg (4 lb.)


  • 17-572-01-es
  • 17-572-01-fr
  • 17-572-01-it
  • UST800-850-UDST800-SmartSensor
  • InstallationD-17-572-01
  • InstallationD-17-623-01
  • WiringD-19337
  • WiringD-91-1102

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