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WSC11-Compact Weather Sensor

Make:  Thies Clima                             Model: WSC11
✅ The compact weather station WSC11 is designed for use in building services automation systems.
✅ Measurand : Wind speed, Wind direction, Brightness, Twilight, Global irradiance, Precipitation, Air temperature, air pressure, Time / date, Geostationary data, Position of the sun, Relative humidity, Dew-point temperature, Inside temperature of housing.
✅ Sensor Type : Thermal anemometer, Silicon sensor, Ceramics, capacitive value measurement, sensor area heated, PT1000, Piezoresistive, CMOS capacitive,RS485.
✅ Signal Output : RS485 interface in half-duplex mode. Two data protocols are ASCII (THIES- format) and binary (MODBUS RTU).
✅ Supplied With: Mounting angle (509564 ), 5 meter Cable for WSC11 (510023),  10 m Cable for WSC11 (510024), Factory trest/Calibration certificate

WSC11-Compact Weather Sensor:

The interface for the instrument is digital and consists of an RS-485 interface. Together with ID-based communication, the interface facilitates the operation of the weather station in a bus.
The instrument has a GPS receiver. Its purpose is to determine position and time. In addition, the position of the sun is calculated here.
The following parameters can be measured: wind speed, wind direction, brightness (in North, East, South, and West), twilight, global radiation, precipitation, temperature, relative air humidity, air pressure, time/date, geostationary data, longitude, latitude, sun position, elevation, and azimuth.

Wind Speed and Direction: Wind measurement is based on the hot wire principle. The underside of the housing is equipped with a heated cylindrical sensor. A PID controller adjusts the temperature of the cylinder to a temperature that is constantly increasing in relation to the environment. The supplied heat energy is a measure of wind speed.

Brightness is measured using four Silicium photo sensors that are aligned to the four cardinal directions in the mean elevation angle.

Twilight: “Twilight” refers to the light diffusion in the atmosphere caused by the smooth transition from day to night before or after the start or end of the day. i.e., the solar disc is not visible. The twilight is direction-independent. It is calculated from the sum of the four measuring values of the direction-independent brightness sensors. Commands can be used to change the mean value of the four brightness values.

Global irradiance: A silicon PIN photodiode is used to measure global irradiance. The sensor is positioned horizontally and registers the diurnal values of the solar irradiation intensity.

Precipitation: The detection of precipitation is based on capacitance measurement, i.e., the capacity of the sensor surface varies when wet. The sensor is installed in the housing cover. An integrated heating system adjusts the sensor area to a higher temperature in relation to the ambient temperature. This overtemperature (approximately 2 K) prevents bedewing of the sensor surface. The thermal output increases with precipitation. This accelerates the drying of the sensor, allowing the time at which precipitation ended to be identified more accurately.

Air temperature: A PT1000 measuring resistor is used to measure the air temperature. The sensor is mounted on a flexible printed board and positioned in the lower section of the housing.

Air pressure: Absolute air pressure is measured with a piezoresistive MEMS sensor.

Time, date, and geostationary data: The weather station has a GPS receiver with a built-in RTC. This allows it to receive the position of the weather station (degree of longitude and latitude, local altitude), time (UTC), and date. The GPS receiver does not need alignment. The built-in RTC (Real Time Clock) is buffered with a backup capacitor and retains its data without a voltage supply for a minimum of 3 days.

Position of the sun (elevation and azimuth): On the basis of the GPS data, the current sun position is calculated every second.

Humidity measurement: A built-in hygro-thermosensor is used to measure humidity levels. The sensor has a small air exchange volume thanks to its compact design and responds to changes in humidity in seconds.
A software module uses the relative humidity and air temperature to calculate the absolute humidity and dew point temperature.

The temperature of the inside of the housing is measured by a silicon temperature sensor.

GPS-Receiver: The weather station has a GPS receiver with an integrated RTC (real-time clock) for receiving the position of the weather station and time and date (UTC). An alignment of the GPS receiver is not necessary. The integrated RTC is buffered for a period of 3 days.

Application and features of WSC11-Compact Weather Sensor:



✅ Building control system
✅ Traffic engineering
✅ Meteorology
✅ Energy supply
✅ Ecological monitoring
✅ Compact construction
✅ Easy mounting
✅ Diverse options of data output.
✅ Real Time Data monitoring
✅ Data Accuracy

Thies Clima




Ø 130 x 70 mm

Weight (Mass)

0.2 kg

Power Supply

18 … 30VDC, 18 … 28VAC

Power Consumption

120mA @ 24 V (max. 1,5A AC, max 0,5A DC).

Operating Environment

-30 … +60°C

Protection Level


Mast Diameter

on mast tube Ø 25mm

Cable Length

10 m

Air Temperature

Type : PT1000.
Measuring range : -30 … +60°C.
Resolution : 0.1°C .
Accuracy with wind speed >2m/s : ±1°C (-5 … +25°C)

Wind Speed

Type : Thermal anemometer.
Measuring range : 0 … 40m/s .
Resolution : 0.1m/s.
Accuracy : To 10m/s: ±1m/s (rms – mean over 360°). From 10m/s: ±5% (rms – mean over 360°).

Wind Direction

Type : Thermal anemometer.
Measuring range : 1 … 360°
Resolution : 1° .
Accuracy with laminar incident flow : ±10°

Relative Humidity

Type : CMOS capacitive.
Measuring range : 0 … 100% .
Resolution : 0.1% .
Accuracy with wind speed >2m/s : ±10% rel. humidity at : 20°C

Air Pressure

Type : Piezoresistive.
Measuring range : 300 … 1100hPa .
Resolution : 0.01hPa .
Accuracy : ±0.5hPa at 20°C .
Long-term stability : ±0.1hPa / year


Type : Ceramics, capacitive value measurement, sensor area heated.
Measuring range : 1 / 0 (precipitation yes/no) .
Thermal output, sensor dry, bedewing protection : 0.1W
Thermal output, sensor wet drying phase : 1.1W

Global Radiation

Type : Silicon sensor.
Measuring range : 0 … 1300W/m² .
Resolution : 1W/m² .
Accuracy : ±10% (± 130W/m²) .
Spectral range : 350 … 1100nm


Type : Silicon sensor.
Measuring range : 0 … 150kLux .
Resolution : 0.1kLux .
Accuracy : ±3% (± 4.5kLux) .
Spectral range : 475 … 650nm


Type : Silicon sensor,
Measuring range : 0 … 999Lux ,
Resolution : 1Lux ,
Accuracy : ±10Lux

  • What is weather monitoring station?

    Weather monitor station:  Weather monitoring station is a facility with instruments and equipment for measuring atmospheric conditions to provide information for weather forecasts and to study the weather and climate. It is available with Solar Panel and Mounting Accessories.

  • What is weather monitor system?

    Weather monitor system: Collecting weather data like Wind Speed, Wind Direction, Precipitation, Air temperature, Relative humidity, Brightness, Twilight, Solar radiation, Barometric pressure, with the help of  data logger.

    A weather monitoring system consists following component.

    • Weather sensors (Wind Speed, Wind Direction, Precipitation, Air temperature, Relative humidity, Brightness, Twilight, Solar radiation, Barometric pressure)
    • Solar Panel
    • Data logger
    • Telemetry system
    • Data monitoring software.
  • What is weather monitor?

    Weather monitors: The periodic or continuous surveillance or analysis of the state of the atmosphere and climate, including variables such as temperature, moisture, wind velocity and barometric pressure is called weather monitoring.

  • What is weather detector?

    Weather detector: Weather detectors are also called weather sensor as per their name they detect changes in weather parameters.

  • What is weather sensor?

    Weather sensor: Weather sensors are sensor used to detect meteorological parameters data such as- Wind Speed, Wind Direction, Precipitation, Air temperature, Relative humidity, Brightness, Twilight, Solar radiation, Barometric pressure.

  • What is cast of Automatic weather station.

    Automatic weather station cost: AWS cost varies according to number of parameters and features, you can contact us to get best quote.

  • What are Automatic weather station components?

    Automatic weather station components: Typical AWS have the following components:

    • Anemometer for measuring Wind Speed.
    • Wind Vane for measuring Wind direction.
    • Pyranometer for measuring solar radiation.
    • Barometer for measuring atmospheric pressure.
    • Hygrometer for measuring humidity.
    • Rain gauge for measuring liquid precipitation.
    • Evaporation Sensor for measuring evaporation.
  • What is Automatic weather station?

    Automatic weather station (AWS) is automated version of conventional weather sensor. Which helps in monitoring all type of weather parameter like Wind Speed, Wind Direction, Precipitation, Air temperature, Relative humidity, Brightness, Twilight, Solar radiation, Barometric pressure.

  • Quote WSC11-Compact Weather Sensor