Plastic Wind Direction Sensor With Analog Output – 3S-WD-I-P
The 3S-WD-I-P Plastic Wind Direction Sensor with Analog Output is designed for PV plants, weather stations, and industrial monitoring systems that need stable and accurate wind direction data. With analog output (0 – 4-20 mA) and ±1% accuracy, it integrates quickly with SCADA, PLC, and datalogger Systems, ideal for both new and existing installations.
According to IEC 61724-1:2021, measuring wind direction supports module temperature analysis and helps validate warranty claims for wind-related events. The 3S-WD-P is built exactly for this type of dependable, long-term field monitoring.
TECHNICAL SPECIFICATIONS OF PLASTIC WIND DIRECTION SENSOR WITH ANALOG OUTPUT
| Item Code | 3S-WD-I-P |
| Sensor Type | Vane-Driven Hall Effect Position Sensor |
| Measuring Range | 0 to 359° |
| Accuracy | ±1% of Measuring Value |
| Resolution | 0.1° |
| Threshold | 1 m/s |
| Data Output | Analog 4-20 mA |
| Power Supply | 12 to 30 V DC (24 V DC recommended) |
| Power Consumption | Typically 30 mA @ 24 V DC |
| Electrical Connection | 1 m 2x2x0,22 mm²- LI2Y(st)C11Y Cable, UV and Weather Resistant |
| Operating Temperature Range | -40°C to +85°C (Ice Free) |
| Dimensions | 265 mm x 190 mm |
| Box Dimensions | 80 x 82 x 55 mm (W x L x H) |
| Weight | 0,33 kg |
| Box Weight | 0,25 kg |
| IP Rating | IP 54 |
| Housing Material | ASA |
| Vane Material | P6GF20 |
| Box Material | ABS |
| Mounting Method | Pipe or Ground Mounting |
| Standard | Compliant to IEC 61724-1:2021 |
How Does the 3S-WD-I-P Wind Direction Sensor Work?

The 3S-WD-I-P uses a vane, a magnet, a Hall Effect position sensor, and a 4–20 mA current output to measure wind direction.
- The wind moves the vane, and the vane turns a shaft.
- A magnet on the shaft rotates in front of the Hall sensor.
- The Hall sensor detects the magnet’s position and calculates the wind direction between 0° and 359°.
- The electronics then convert this angle into a 4–20 mA signal, which your PLC, SCADA or datalogger reads and scales as wind direction.
What Makes the 3S-WD-I-P a Good Fit for PV Plants and Monitoring Sites?
Lightweight but Durable for Long Outdoor Exposure
The 3S-WD-I-P is built for continuous outdoor use on PV power plants and met masts. The low weight (around 0.25 kg) keeps the load on the mast low, while the UV-stable materials handle strong sun, temperature swings and daily wind loads without deforming.
Easy Integration With Existing Equipment
The sensor provides a 4–20 mA output, which is a standard input on many dataloggers and SCADA systems used in PV plants. In many projects, the 3S-WD-I-P is wired directly to existing analog input cards, so installers do not need protocol converters or special interface modules.

Fast Installation
Each 3S-WD-I-P is delivered ready to mount with corner-head bolts. The sensor fits standard pipes and brackets used on PV weather masts. Once the mast is in place, aligning the vane and tightening the bolts usually completes the mechanical installation in a few minutes.
Stable and Accurate Wind Direction Data
The combination of Hall sensing and current loop output gives 1° resolution and a stable, low-noise signal. Plant operators use this data for performance analysis, local wind pattern studies and alarm logic (for example, when wind direction combined with high wind speed may increase the risk on certain module rows or structures).
How Do I Install the Analog Wind Direction Sensor Correctly?
Installation is straightforward and typically takes just a few minutes:
- Choose the Right Location
Mount the sensor in an open area, away from walls, trees, or rooftop obstacles that block wind flow.
- Align to True North
Use the N-mark on the sensor and align it carefully with a compass. Proper alignment ensures accurate data.
- Secure the Mount
Use the supplied corner-head bolts to mount the sensor on a vertical pipe or support arm.
- Connect to the Controller
Connect the 4-20 mA analog output to your PLC, SCADA, or inverter input.
For detailed wiring and commissioning steps, refer to the 3S-WD User Manual.
What Maintenance Does the Plastic Wind Speed Sensor with Anlaog Output Require?
The sensor is designed to be low-maintenance, but IEC 61724-1:2021 recommends periodic checks.
Recommended maintenance:
- According to IEC 61724-1:2021, the monitoring system should be inspected at least annually and preferably at more frequent intervals
- Remove accumulated dirt or bird droppings
- Confirm the vane moves freely
- Re-check alignment if the mast is moved or serviced
Frequently Asked Questions (FAQ)
1- What standards does the plastic wind direction sensor with analog output comply with?
The 3S-WD-I-P meets IEC 61724-1:2021 requirements for PV performance and safety monitoring.
2- How do I connect the Plastic Analog Wind Direction Sensor to my system?
Simply connect the 4–20 mA analog output (an industry-standard current loop where 4 mA represents the minimum measured value and 20 mA represents the maximum) to the analog input on your SCADA, PLC, or datalogger.
3- What power supply does the 3S-WD-I-P require?
The sensor works on 12–30 V DC, with 24 V DC recommended.
4- What is the warranty period of the Plastic Wind Direction Sensor with Analog Output?
The 3S-WD-I-P comes with a 2-year warranty against manufacturing defects. This period can be extended upon request.
5- What is the price of the Plastic Wind Direction Sensor with Analog Output?
Pricing typically ranges from €185 to €335.
6- Can the cable length of the 3S-WD-I-P be customized?
Yes. While the standard cable is 1 m, longer versions are available on request. The recommended length is maximum 20 meters to avoid data problems.
7- What are the delivery times for the Plastic Wind Direction Sensor with Analog Output?
Small orders typically ship in approximately 1–2 weeks, while bulk orders (100 pcs) typically ship in approximately 6–8 weeks.
