AIRMAR Technology: UST800/850 Ultrasonic Speed and Temperature Sensor

Ultrasonic Speed and Temperature Sensor, AIRMAR Technology
Ultrasonic Speed and Temperature Sensor from AIRMAR Technology AIRMAR Technology

Ultrasonic speed and temperature sensor provides maintenance-free reliability all season long. AIRMAR, the company who invented the Smart™ Sensor, has raised the bar with a new ultrasonic speed and temperature sensor. The UST800/850 calculates speed ultrasonically up to 22 times every second, automatically adapting update rates based on vessel speed. Because it’s ultrasonic, there is no paddlewheel, meaning trouble-free operation and no maintenance. With fast-response water temperature accuracy, the UST800/UST850 makes finding optimum swimming and fishing temperatures easy. This translates into the most reliable and precise ultrasonic speed/temp sensor on the market—at a very competitive price.

For use on powerboats and sailboats of all types and sizes with reliable operation in both salt and fresh water.


  • Speed Range: 0.1 to 50 knots (57 MPH)

Fast Response Water Temperature

  • Accuracy +0.5°C (+1.0°F)
  • Range -4°C to 40°C (24.8°F to 104°F)

Simple Installation and Easy Maintenance

  • Only one hole through the hull simplifies the installation
  • Retrofits into popular P617V and other housings
  • No paddlewheel to clean and maintain

Available Outputs

  • —NMEA 0183
  • —NMEA2000®




More Information

Website: AIRMAR

See the complete 2018 Marine Electronics Guide