The WS85 sonic anemometer with haptic rain gauge connects wirelessly to the Ecowitt WiFi gateway to obtain wind direction, wind speed and rain readings on your system. Features Measures wind and rain Sensor only for use with a gateway or console (sold separately) After configuration, the live wind and rain data can be viewed directly on the App When use with a gateway or console supports uploads to online services Wind and rain sensor calibration available on the App Included WS85A wireless 3-in-1 sensor array (no console or gateway) Plastic mounting arm for pole or surface fixing Fixing U-bolts for installation on 25-50mm pole (pole not supplied as standard) User Manual Technical & Manual Transmission distance in open field: 150m (490 feet) 868MHz UK and European frequency (A suffix) Wind speed range: 0 – 40m/s (0 ~ 89 mph) Wind speed accuracy: