WS800 Smart Weather Sensor
Company | OTT HydroMet |
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Product code | 8381.U01 |
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First and only compact all-in-one weather sensor with detection of lightning strikes
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 intensity, precipitation type, precipitation quantity, solar radiation, lightning detection, air pressure, wind direction and wind speed. One external temperature sensor is connectable
- Parameters measured: temperature, relative humidity, air pressure, wind direction, wind speed, precipitation intensity, precipitation quantity, radiation, lightning strikes
- First and only compact all-in-one weather sensor with lightning detection,
- Low power consumption
- Integrated heater
- Aspirated radiation shield
- Maintenance-free operation
- Open communication protocol
- Interfaces: RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, XDR and SDI-12
- First and only all-in-one compact weather sensor with lightning detection
- Built-in data pre-processing, universal interfaces and selectable output protocols
- Compatible with many commercially available Met/HydroMet dataloggers and PLS systems thanks to an open communication protocol
- Maintenance-free operation – no moving parts that can wear out
- Suitable for all climate zones; also, for solar-powered automatic meteorological station
- Integrated heater that can be switched on if there is danger of frost
General | |
Dimensions | Ø approx. 150 mm, height approx. 317 mm |
Weight | Approx. 1.5 kg |
Interface | RS485, 2 – wire, half – duplex |
Power supply | 4…32 VDC |
Operating temperature | -50…60°C |
Operating rel. humidity | 0…100% RH |
Heating | 40 VA at 24 VDC |
Cable length | 10 m |
Protection level housing | IP66 |
Mast mounting suitable for | Mast diameter 60 – 76 mm |
Lightning detection | |
Lightning detection | Number of lightning events |
Coverage area | 5 – 10 km |
Air 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 |
Wind speed | |
Principle | Ultrasonic |
Measuring range | 0…75 m/s |
Unit | m/s |
Accuracy | ±0.3 m/s or ±3 % (0…35 m/s) ±5 % (>35 m/s) RMS |
Resolution | 0.1 |
Precipitation intensity | |
Resolution | 0.1 mm/h |
Precipitation quantity | |
Resolution | 0.01 |
Reproducibility | Typical >90% |
Measuring range drop size | 0.3…5 mm |
Type of precipitation | Rain/snow |
Radiation | |
Unit | W/m² |
Accuracy | 5% |
Response time (95%) | < 1s |
Spectral range | 300 to 1100 nm |
Measuring range | 1400 W/m² |