Reliable wind speed and wind direction data are essential for protecting facades, external blinds, awnings and roofs, as well as for optimising building automation strategies in all weather conditions. Accurate local measurements help prevent wind damage, reduce downtime, and extend the lifetime of shading and facade elements.
Wind speed sensor ANDWM1
The wind speed sensor ANDWM1 is a cup anemometer designed to measure wind speed in the range from 0 to 35 m/s, with the evaluation electronics integrated directly in the housing. It offers standard output signals 0–10 V or 4–20 mA and is available with 24 V AC/DC or 230 V AC power supply, which makes integration into most BMS or PLC systems straightforward.
The sensor starts measuring from approximately 1 m/s, withstands wind loads up to 50 m/s and is built in protection class IP65 for demanding outdoor use. It can be mounted on masts up to about 50 mm diameter and is widely used to control wind‑dependent actuators such as blinds, shutters or roof windows.
The standard ANDWM1 wind speed sensor continuously measures the actual wind speed and sends this value as an analogue signal (0–10 V or 4–20 mA) to the building automation system, where the control logic is defined in the controller.
In addition to the standard wind speed sensor ANDWM1, the switching versions ANDWM1‑P allow you to set a switching threshold directly on the device: when the wind speed exceeds the set value, the internal relay switches and provides a simple on/off signal for wind alarms and automatic protection functions.
| Type | Switching capacity | Power supply |
|---|---|---|
| ANDWM1-P-N | 24 V AC | 24 V |
| ANDWM1-P-Z24 | 230 V AC, 3 A | 24 V |
| ANDWM1-P-Z230 | 230 V AC, 3 A | 230 V |
ANDWM1-P-N – internal switch version (24 V AC/DC)
The ANDWM1-P-N is a switching wind sensor with an integrated relay inside the anemometer housing. It continuously monitors wind speed in the range 0–35 m/s and switches when the adjustable wind speed threshold is reached. The built-in relay changes its contact state once the set wind speed is exceeded, which makes it a very simple and compact solution wherever a direct switching contact is required without a separate control unit.
ANDWM1-P-Z-24 – external switching unit (24 V, 230 V / 3 A switching capacity)
The ANDWM1-P-Z-24 is designed as a more advanced wind monitoring and warning system with a separate control unit. The anemometer is connected to an external electronic module. This unit not only acts as a wind speed switch, but can be integrated as part of a broader signalling and safety system in industrial and building automation applications. It is the right choice when more flexibility in installation and integration with other systems is required.
There is also a version for 230 V supply, ANDWM1-P-Z-230, which is suitable where only 230 V mains power is available on site. Both external switching versions are powered from 24 V or 230 V, but the sensor output and relay are always designed to provide a safe and reliable switching contact for wind alarms. If the local electrical network does not provide 24 V AC/DC, a suitable power supply unit is required to convert 230 V to 24 V AC/DC for the sensor and control electronics.
For all switching versions, the switch-on delay is typically set to around 8 seconds, while the switch-off delay is around 6 minutes. This hysteresis ensures that short wind gusts do not cause unnecessary switching and that shading or facade elements remain safely retracted until the wind has calmed down for a sufficient period of time.
External switch – separate housing from the anemometer
Wind direction sensor ANDWM2
The wind direction sensor ANDWM2 is a wind vane sensor for detecting horizontal wind direction with integrated signal processing electronics. Like the speed sensor, it provides 0–10 V or 4–20 mA output signals and can be powered with 24 V AC/DC or 230 V AC, allowing easy connection to standard control and display units.
The robust design with IP65 protection, a weather vane length of around 350 mm and maximum wind load of 50 m/s ensures reliable operation even in harsh outdoor conditions. The sensor is typically used for direction‑dependent control, for example retracting awnings only when strong winds come from exposed directions or for optimising louvre orientation.
Combined wind sensor ANDWM3
The combined wind sensor and wind direction sensor ANDWM3 integrates a cup anemometer and wind vane in a single housing, measuring both wind speed (0–35 m/s) and full 0–360° wind direction. The evaluation electronics are integrated, and outputs are again available as 0–10 V or 4–20 mA with 24 V AC/DC or 230 V AC supply options.
With IP65 protection, a start speed of around 1 m/s and maximum wind load of 50 m/s, ANDWM3 is suitable for professional building automation and compact weather stations. By combining both parameters in one device it simplifies installation, reduces cabling and mounting points and saves space on rooftops and masts.
Typical applications in building automation
Wind sensors are used wherever wind can endanger people, equipment or building elements, or where processes depend on wind conditions. Typical applications include:
Automatic retraction of external blinds, awnings and shutters at high wind speeds to avoid mechanical damage.
Control of skylights, roof windows and ventilation flaps to prevent water ingress and over‑ventilation in strong winds.
Integration into weather stations together with rain sensors and global radiation sensors for comprehensive facade and HVAC control.
Monitoring of exposed structures such as antenna masts, PV installations or other rooftop equipment.
Local wind measurement directly at the building is more reliable for control than remote forecast data, because it reflects real conditions on the facade or roof.
In addition to typical building automation projects, wind speed and wind direction sensors are also widely used in industrial applications such as crane safety, large roof structures, logistics terminals and other exposed industrial facilities where reliable wind monitoring is crucial for safe and efficient operation.
Need help choosing the right wind sensor?
If you are planning a new project or upgrading an existing building automation system and are not sure which wind speed and wind direction sensor is the best fit for your application, the safest option is to get expert advice. Get in touch with the Andivi team to choose the most suitable professional wind sensor solution for your facade, shading or weather station and to receive full support with integration into your building automation system. To explore the topic even further, you can also read our article about the Andivi anemometer for measuring wind speed and wind direction, where we dive deeper into practical use cases and technical details of wind measurement.
