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Condition: New
Airmar UST850S-S577-N2 Ultrasonic Smart Sensor NMEA2000 Stainless Steel Housing

Your Price: $1,187.53

Out of Stock - Estimated Ship Date: Please Call

SKU: UST850S-S577-N2

MSRP: $1,462.90
Manufacturer: Airmar

Mfg. Part No: UST850S-S577-N2 (Kit)

Qualifies for Ground Promos Only - Call for Other Shipping Methods

Airmar UST850S-S577-N2 Ultrasonic Smart™ Sensor NMEA2000 Stainless Steel Housing

AIRMAR's new UST850 just turned your maintenance time into more cruising time…and made your boat smarter too. Ultrasonic speed and temperature in one single housing with no moving parts makes this sensor 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.


  • Easily retrofitted into Airmar’s ST650/ST850 Series without haul out!
  • Ultrasonic Speed & Temperature in one housing with no moving parts
  • Precise readings at high speeds ideal for powerboats and performance sailing
  • Fast data update rate (up to 10 x per second)
  • Speed Range (0.1 to 50 knots)

Advanced filtering & sampling rates for increased accuracy at all speeds

  • Adapts automatically to increases in speed so accuracy remains constant
  • No paddlewheel maintenance


  • Correlation Speed Sensor Transmitting Frequency: 4.5 MHz
  • Correlation Pulse Repetition Frequency: 0.5 kHz to 12 kHz (varies with speed)
  • Speed Correlation Rate: 50 knots (57 MPH)
  • Available Outputs: NMEA 0183, NMEA2000®
  • Water Temperature Range: -4°C to 40°C (32°F to 104°F)
  • Supply Voltage- NMEA2000®: 9 VDC to 16 VDC
  • Supply Current: 80 mA - 200 mA, Average 125 mA @12VDC
  • Thru-Hull Housing Material: Plastic, bronze or stainless steel
  • Thru-Hull Housing Diameter: 51 mm (2")
  • Blanking Plug: Yes
  • CE Compliant: Yes

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