Features
Sensor: Piezoelectric rain gauge; Ultrasonic wind speed, gust speed,
and wind direction; Temperature; Humidity; Solar light intensity and UV index;
Waterproof IPX5;
Services
Need a console to use.
Compatible gateways / consoles (Wi-Fi and/or Cellular): GW1100/GW1200/GW2000/GW3000/WS6210/HP2550/HP2560/HP3500/WS3800/WS3820/WS3900/WS3910/WN1920/WN1980/WN1820/WN1821/WN1900/WN1910/WN1700
Note:
1. The sensor may share the same channels with other sensors of the same type.
2. Some data is cloud-only and not available on compatible consoles.
3. Compatibility may change with product updates. Please refer to the latest compatibility table(at the bottom of the product page) or contact us for confirmation.
Specifications (Sensor)
| Measurement | Range | Accuracy | Resolution |
| Wind speed | 0m/s to 40m/s | <10m/s, ±0.5m/s; ≥10m/s, ±5% | 0.1m/s |
| Wind direction | 0° to 359° | <2m/s, ±10°; ≥2m/s, ±7° | 1° |
| Temperature | -40°C to 60°C | ±1°C (± 1.8°F) | 0.1°C (± 0.2°F) |
| Humidity | 1% to 99% | ±3.5% | 1% |
| Light | 0Klux to 200Klux | ±15% | 0.1Klux |
| UVI | 1 to 15 | ±2 | 1 |
| Rain | 0 to 9999 | TBA | 0.1mm |
Sensor solar panel (built-in): 6.5V/4mA
Sensor (backup): 2 x AA 1.5V battery (not included)
Transmission between gateway and sensor
Transmission distance in open field: 150 m (500 ft.) depend on environment
RF frequency: 433/868/915/920 MHz depending on location
Sensor reporting interval: 8.8 seconds
Parts List
1* WS90 sensor
1* User manual
| Built-in sensor measurement | ||
|---|---|---|
Rain Gauge |
—
|
|
Haptic Rain Gauge |
|
—
|
Anemometer |
—
|
|
Ultrasonic Anemometer |
|
—
|
Outdoor Thermo-Hygrometer (Temp & Humidity) |
|
|
Light Sensor |
|
|
| Power | ||
Solar power supply |
|
|
Power cord supply |
|
—
|
Battery supply |
|
|
Extra battery pack supported |
|
|
| Connection & Data | ||
RF Wireless protocol |
|
|
Compatibility Instructions
for all ecowitt network consoles
Please refer to the table to choose the correct sensors and consoles before checkout.
Note:
1) "1/4/8/16" = max number of sensors supported per console (excluding accessories).
2) Upload only = sensor readings shown only in the Ecowitt app and cloud (www.ecowitt.net).
3) Firmware (e.g. V1.9.6 / V2.0.2) = gateway/console must run this version or newer.

