Brand: ECOWITT
Power source: Solar Powered, Battery Powered
Special feature: Wireless, Lightweight
Connectivity technology: Wi-Fi
Style: WS3901: WS90+7.5 inch Display
Colour: black
Included components: Outdoor Sensor, Indoor Console
Temperature accuracy: +/- 1 degree Celsius
Are batteries included: No
Sensor technology: Ultrasonic
Home Ecowitt Weather Station: Outdoor Sensor WS90 pairs with 7.5-inch upgrate designed console, reasonable screen design and weather data display, be a weather forecast assistant, it can make you more convenient, more intelligent control of weather conditions, when you make a reasonable travel plan.
Wittboy Outdoor Sensor WS90: 7-in-1 sensors array, integrated design, 7 kinds of sensor monitor the outdoor data: temperature and humidity, wind speed, wind direction, rain, light, UV light. It needs 2 AA batteries (not included) and is then powered by solar energy. Equipped with a Haptic Rainfall Sensor at the top that accurately measures rainfall volume in detail: featuring rain detection and rain stop interpretation functions.
Enlarged 7.5-inch Colour LCD Console: 8 touch buttons, built-in 3 sensors to minitor the indoor temperature-humidity and air pressure, and display the indoor temperature-humidity and trend, also display the air pressure and trend of air pressure, and adjust the brightness of backlight under DC power supply, need 3*AA batteries or DC adapter power supply.
WIFI Connection: Successful WIFI connection, then synchronised time, and uploading data to Ecowitt cloud server, WU, WeatherClould, WOW, or custom server, support web page network, set up web page firmware update, and at the same time web page to view more sensor data, set up the server, set up the calibration parameters, and set up the sensor ID.
Pairing with other sensors: Receive and display 1*WH40, 8-channel WN31/37/30/36, can be used as a gateway, support more sensor data receive and upload (WH51/ WN34/ WH57/ WH55/ WH45/ WH43/ WH41 can not be shown on the display). Support ecowitt IOT intelligent link control (16 channels WFC01,AC1100).
Weather Forecast: After a period of weather data measurement, the console can make a weather data forecast for the approaching date, such as sunny, sunny to cloudy, cloudy, rainy, stormy, snowy, heavy rain.
【NOTE】The daily rain deviation of WS90 is very small in the long run, but under certain conditions the deviation could be larger: As the rain drop size and wind speed can have different impacts on the sensor output which lead to this variance. The WS90 product suffer from this imperfectness. If you are very demanding on rain data accuracy, we recommend you purchase WH40 and use it with WS90. If there is no precise requirement on data of each rain, then WS90 is just fine.
 Ecowitt Weather Stations With Outdoor Sensor Wireless UK  
 Weather Station WS3901 
 Weather Station HP2551 
 Weather Station GW1101 
 Weather Station WS3800 
 Weather Station HP2564 
 Weather Station WS3900 
 Weather Station WS2910 
 7 In 1 outdoor sensor WS90+ 7.5 inch WS3900_C display 
 Does not include installed levers.  
 1 x WS90 Weather Outdoor Sensor 
 1 x WS3900_C Weather Station Receiver 
 1 x User Manual 
 1 x DC to USB Cable 
 Dimensions: 93*93*208mm（WS90）, 8.2 x 5.6 x 1.1 inch(WS3900_C),Screen Size: 6.6 x 3.7 inch;  Weight: 867(g); Material of Plastic Casing: ASA+PC、PC; 
 Temperature Metering Range:  -40°C to 60°C(-40℉ to 140℉); Temperature Metering Accuracy:  ±0.2°C (± 0.4°F); Temperature Metering Resolution:  0.1°C (± 0.2°F); Humidity Metering Range:  1%RH to 99%RH; Humidity Metering Accuracy:  ±2%RH; Humidity Metering Resolution:  1%RH 
 Rainfall Metering ranges: 0mm to 9999mm; Rainfall Metering accuracy:  <5mm/h, ±20%; 5mm/h to 50mm/h, ±10%; >50mm/h, ±20%; Rainfall Metering resolution:  0.1mm 
 Wind speed Metering range:  0m/s to 40m/s ; Wind speed Metering accuracy:  <10m/s, ±0.5m/s; ≥10m/s, ±5% ; Wind speed Metering resolution:  0.1m/s (starting speed > 0.5m/s) 
 Wind direction Metering range:  0° to 359°; Wind direction Metering accuracy:  ±15°; Wind direction Metering resolution:  1°; Light Metering range:  0Klux to 200Klux 
 Light Metering ac