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HD53LS..-Ultrasonic Anemometer

Make:  Delta ohm    Model:  HD53LS..
✅ 2-axes ultrasonic static anemometer for the measurement of wind speed and direction, U-V Cartesian components of wind speed.
✅ Measurand : Wind Speed , Wind Direction, Compass.
✅ Sensor type: Ultrasonic , Magnetic
✅ Signal Output: HD53LS.A:  2 Analog outputs HD53LS.S: RS485 MODBUS-RTU output
✅ Supplied With: Cable, Factory test/ Calibration Certificates.
SKU: AM-HD53LS.S-DEL Category:

HD53LS is a 2-axis ultrasonic static anemometer for measuring: Wind speed and direction, U-V Cartesian components of wind speed, Wind Gust (only in version with RS485 MODBUS-RTU output). The average of wind speed and direction over a period configurable up to 10 minutes is calculated.

Two versions are available:

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

Advantages of the HD53LS series:

  • The absence of moving parts minimizes maintenance.
  • High sensitivity for detecting very low speeds, which are not detectable by traditional methods.
  • Fast and easy installation (on ∅ 40 mm mast, optional tripod available).
  • The low power of the instrument allows installation in remote sites, with power from solar panel and battery.
  • The version with RS485 MODBUS-RTU output allows instrument networking.

Delta ohm



Weight (Mass)

640 g approx.


H=179mm, ∅=150mm


Analog output: 2 analog outputs: one for wind speed and one for wind direction (only in HD53LS.A). Analog output type is 4…20 mA as standard; 0…1 V, 0…5 V or 0…10 V available on request. Analog output refresh rate 1 Hz.
Digital output: RS485 MODBUS-RTU (only in HD53LS.S)

Power Supply

10…30 Vdc (15…30 Vdc for version with 0÷10 V analog output)

Power Consumption

26 mA @ 12 Vdc

Operating Temperature

-20…+55 °C

Protection Level

IP 66

Wind speed

Used sensor:- Ultrasounds
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

Used sensor:- Ultrasounds
Measuring range:- 0…359.9°
Resolution:- 0,1°
Accuracy:- ± 2° RMSE from 1.0 m/s


Sensor:- Magnetic
Measuring range:- 0…360°
Resolution:- 0.1°
Accuracy:- ± 1°


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