From the WS product family of professional intelligent measurement transducers with digital interface for environmental applications. Integrated design with ventilated radiation protection for measuring: Air temperature, relative humidity, precipitation, air pressure, wind direction and wind speed. One external temperature sensor is connectable.
| General | |
| Dimensions | Ø approx. 164 mm, height approx. 445 mm |
| Weight | Approx. 1.7 kg |
| Interface | RS485, 2 – wire, half – duplex |
| Power supply | 11…32 VDC |
| Power supply | 5…11 VDC (electronics with limited precision of measurements) |
| Power supply | 24 VDC +/- 10% (heater) |
| Power consumption | 20 VA (heater) |
| Operating temperature | -50…60 °C (with heater) |
| Operating rel. humidity | 0…100 % RH |
| Protection level housing | IP66 |
| Standards/Regulations | Compliant to IEC 61724-1:2017 |
| Mast mounting suitable for | Mast diameter 60 – 76 mm |
| Cable length | 10 m |
| Temperature | |
| Principle | NTC |
| Measuring range | -50 … 60 °C |
| Unit | °C |
| Accuracy | ±0.2 °C (-20…50 °C), otherwise ±0.5 °C (>-30 °C) |
| Relative humidity | |
| Principle | Capacitive |
| Measuring range | 0 … 100 % RH |
| Unit | % RH |
| Accuracy | ±2 % RH |
| Air pressure | |
| Principle | MEMS capacitive |
| Measuring range | 300 … 1200 hPa |
| Unit | hPa |
| Accuracy | ±0.5 hPa (0…40 °C) |
| Wind direction | |
| Principle | Ultrasonic |
| Measuring range | 0 … 359.9 ° |
| Unit | ° |
| Accuracy | < 3° RMSE > 1.0 m/s |
| Resolution | 0.1 |
| Wind speed | |
| Principle | Ultrasonic |
| Measuring range | 0 … 30 m/s |
| Unit | m/s |
| Accuracy | ±0.3 m/s or 3 % RMS |
| Resolution | 0.1 m/s |
| Precipitation | |
| Accuracy | ±2 % |
| Resolution | 0.2 mm |
| Maximum intensity | 144 mm/h |
| Precipitation (with reduction ring) | |
| Accuracy | ±2 % |
| Resolution | 0.5 mm |
| Maximum intensity | 360 mm/h |
Documents
Brochure - Lufft - Image brochure (EN) 
Brochure - Lufft - Weather Critical Operations (EN)
EU declaration of conformity - Lufft WS Family
Manual - Lufft UMB Config Tool (EN)
Manual - Lufft UMB Protocol (EN)
Manual - Lufft WSxxx weather sensor (EN)
Quickstart - Lufft WSXXX - Smart Weather Sensor Family (DE/EN)
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