Ecowitt WS90 7-in-1 Outdoor Sensor is designed to measure multiple weather parameters, including temperature, humidity, wind speed, wind direction, rainfall, UV, and light intensity. Please note that this sensor cannot be used alone. The data can be transmitted via the Ecowitt Wi-Fi Gateway or displayed on a receiver console (sold separately). Once the Wi-Fi configuration is complete, the data can be viewed on the Ecowitt app or on the receiver console.
NOTE: cannot operate standalone, requires compatible console or gateway.
Please refer to the table to choose correct additional sensors and consoles before checkout.
| 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 | ±0.3°C (± 0.6°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: Oceania MHz 433
Sensor reporting interval: 8.8 seconds
