Ultrasonic Sensor：This device measures wind speed, wind direction, temperature, humidity, UV Index and solar radiation. The Ultrasonic Sensor Package is solar powered and sends data to the receiver via a low-power radio. The data can be streamed by Wi-Fi Gateway (sold separately) or HP2551/HP2553 console display (sold separately); and can be viewed on our WS View Plus or Ecowitt App application after the Wi-Fi configuration done.
After setup and during normal operation, the unit is getting its power from solar cell. Note: There’s a built-in heat plate in the 6-in-1 sensor package body, if the lowest temperature at your place is below -3°C, or 26.6°F, and the weather is mostly snowy or rainy, then you may need to activate the heater by supplying an external 12v~18v 1A power to the sensor heating element for melting accumulated snow or ice, which can influence wind measurement accuracy significantly.
Wi-Fi Configure with gateway If you want to view the Ultrasonic Sensor data on your mobile application, you need to pair this device with our Wi-Fi Gateway or HP2551/HP2553 display console (sold separately).
View Online Data on WS View Plus or Ecowitt App When the Wi-Fi configuration is done, you can view the live data of your ultrasonic sensor on the WS View Plus or Ecowitt App application(only for the WiFi gateway).
Perfect After-Sales Service: The hardware technology and software technology can be continuously upgraded, making the weather station more convenient, lightweight, and more accurate in data measurement. At the same time, we will provide you with perfect after-sales service. If there are any technical problems, we will provide guidance in time. If the product has quality problems, we can replace it for you without worry.
Please refer to the table to choose correct additional sensors and consoles before checkout.
| Measurement | Range | Accuracy | Resolution |
| Wind speed | 0~40m/s | <10m/s, +/-0.5m/s
≥10m/s, +/-5% |
0.1M/S |
| Wind direction | 0~359° | <10m/s, TBA
≥10m/s, ±15° |
1° |
| Temperature | -40~60℃ | ±1℃ | 0.1℃ |
| Humidity | 1~99% | ±5% | 1% |
| Light | 0~300Klux | ±15% | 10Lux |
| UVI | 1~15 | ±2 | 1 |
| Maximum wind speed of the last 4s is >=5m/s, | the wind speed is detected by 1s; |
| Maximum wind speed of the last 4s is >=3m/s and less than 5m/s, | the wind speed is detected by 2s; |
| Maximum wind speed of the last 4s is <3m/ s, | the wind speed is detected by 4s. |
| Wind speed is lower than 5m/s | the dispersion of wind direction will increase. |
| Note | The wind speed reading will be a real-time value (The latest sampling data will be reporting to the receiver). |
Specifications (Transmission)
| RF Frequency: | Oceania MHz 433 |
| Transmission distance in open field: | 150m(429 ft) for RF Frequency 915/868MHz 200m(600ft) for RF Frequency 433MHz |
| Sensor reporting interval: | 4.8 seconds |
Specifications (Power)
| Anemometer sensor | Solar panel (built-in): 6.5V/4mA |
| Anemometer sensor (backup) | 2Â x AA 1.5V Lithium battery (not included) |
Parts List
| 1 | Solar powered ultrasonic anemometer with Light and UV, air temperature/humidity sensor integrated( optional heater for climate with  snow/ice conditions available) |
| 1 | U-Bolts set for mounting on a pole (2pcs/set) |
| 1 | Threaded nuts for U-Bolts set (M6Â size) (4pcs/set) |
| 1 | Mounting arm for ultrasonic anemometer |
| 1 | Mounting bracelet for ultrasonic anemometer |
| 1 | User manual (this manual) |
Packaged information
Length * Width * Height: 36*16*12cm
Weight: 1300g
Battery: None
