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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.

HD53LS..-Ultrasonic Anemometer:

The HD53LS ultrasonic anemometer is a device used for measuring wind speed and direction. It uses ultrasonic technology to determine the wind speed and direction by measuring the time-of-flight of ultrasonic pulses sent out in four different directions. The device is typically used in meteorological and atmospheric research applications, as well as in industrial and agricultural settings where wind speed and direction are important factors to measure.

The HD53LS ultrasonic anemometer has a number of features that make it well suited for use in a wide range of applications. One of the key features of this device is its high accuracy and resolution, which allows for precise measurements of wind speed and direction. Additionally, it has a wide measurement range, able to measure wind speeds from 0 to 50 m/s and wind direction over a full 360 degree. It also has a high sampling rate that allows for continuous monitoring of wind speed and direction, making it well suited for use in dynamic environments.

Another important feature of the HD53LS ultrasonic anemometer is its low maintenance design. The device is designed to be durable and rugged, with a weather-proof enclosure that can withstand harsh environmental conditions. Additionally, it has a self-cleaning mechanism which prevent the build-up of dust and debris on the sensors, reducing the need for frequent maintenance.

The HD53LS ultrasonic anemometer also has built-in data storage and communication capabilities, which allow for easy data collection and transfer. It is equipped with an RS232 or RS485 interface that allows for data to be transferred to a computer or other data-logging device, and it also has a built-in memory for storing data for later retrieval.

Overall, the HD53LS ultrasonic anemometer is a versatile and reliable device that is well suited for use in a wide range of applications. Its high accuracy, wide measurement range, and low maintenance design make it an ideal choice for meteorological and atmospheric research, as well as for industrial and agricultural applications where wind speed and direction need to be measured.

HD53LS..-Ultrasonic Anemometer is a 2-axis ultrasonic static anemometer for measuring: wind speed and direction, U-V Cartesian components of wind speed, and wind gust (only in the version with RS485 MODBUS-RTU output). The average of wind speed and direction over a period of 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 panels and batteries.
  • The version with RS485 MODBUS-RTU output allows instrument networking.

Application and features of HD53LS..-Ultrasonic Anemometer:



✅ Environmental Monitoring
✅ Agriculture
✅ Sports facility
✅ Marine and Harbor applications
✅ Airports
✅ Construction
✅ Building automation
✅ 2-axis ultrasonic static anemometer
✅ All in one compact and light
✅ High Sensitivity
✅ Made to operate under any condition
✅ Accurate and Reliable System
✅ Great Flexibility
✅ Fast & Easy
✅ Low Power Consumption

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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