High Sensitivity Anemometer HD53LS for Very Low Wind Speeds

High Sensitivity Anemometer HD53LS for Very Low Wind Speeds

High Sensitivity Anemometer HD53LS is a 2-axis ultrasonic static anemometer which is highly sensitive, that’s why it’s able to detect very low wind speeds. Deltaohm Ultrasonic Anemometer HD53LS measures:

  • Wind Gust (only in HD53LS.S which has RS485 MODBUS-RTU output).
  • Wind direction and wind speed, U-V Cartesian components of wind speed.

Also, the average of wind direction and wind speed over a period configurable time up until ten minutes is calculated.

High Sensitivity Anemometer HD53LS  comes in two versions:

  • HD53LS.A: equipped with two analog outputs (one for wind direction and one for wind speed), factory configurable among 4…20 mA (standard), 0…10 V, 0…5 V, 0…1 V (to be specified when ordering).
  • HD53LS.S: has RS485 MODBUS-RTU output.

Benefits of Ultrasonic Anemometer HD53LS

  • There are no moving parts, that’s why it’s low-maintenance
  • Detects very low speeds which are not detectable by traditional methods
  • Easy and fast installation (on ∅ 40 mm mast, optional tripod)
  • Can be powered from solar panel and battery makes it possible to be installed in remote sites
  • HD53LS.S which has RS485 MODBUS-RTU output allows instrument networking


  • Environmental monitoring
  • Weather stations
  • Agriculture
  • Marine and Harbor applications
  • Sports facility
  • Airports
  • HVAC
  • Renewable energy
  • Construction
  • Building automation

Technical Specifications

Wind speed

Measuring Range:  0…50 m/s
Resolution: 0.01 m/s
Accuracy:  ± 0.2 m/s or ± 2%, the greatest (0…35 m/s) / ± 3% (> 35 m/s)

Wind Direction

Measuring Range:  0…359.9°
Resolution: 0.1°
Accuracy: ± 2° RMSE from 1.0 m/s

Felixtrument supplies a complete range of innovative meteorological equipment which come in different types and sizes. Therefore, if you are in need of any Environmental Equipment; you may browse through our various products (which you can find in the mentioned list) to find the one which best suits your needs.


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