1. Automatically calibrate time/indoor temperature/outdoor temperature/indoor humidity/outdoor humidity/wind speed/wind direction weather forecast display calendar/alarm clock 2. RF 433mhz wireless weather station clock WS0232 with wind speed and direction sensor, professional wireless anemometer 433MHz, transmission range up to 100 meters 3. Radio time and date with manual setting (DCF, WWVB optional) 4. Record mixed/maximum indoor and outdoor temperature and humidity. Wind direction (N, S, W, E, NE, SE, SW, NW) is displayed with LCD compass. The weather forecast is displayed by weather icons (sunny, cloudy, cloudy, rainy, snowy). 5. Perpetual calendar, 12 or 24-hour time display, wall-mounted or , time zone and time alarm settings, weather forecast trend arrows, low battery indicator on receiver, weather alarm mode for temperature, air cooling and dew point Temperature display, indoor and outdoor relative humidity display Indoor humidity: 20%~99% Outdoor humidity: 20%~99% Dimensions (height x width x depth): 66x120x22 mm Wind speed range: 0~50m/s Product weight: 0.42 kg Information update: 48 seconds Indoor temperature: 0 Celsius~60 Celsius Outdoor temperature: -40Celsius ~ 60 Celsius Temperature accuracy: 1.0 Celsius. Transmitter: 2xAA 1.5V alkaline batteries(Does not contain) Use environment: home villa/agriculture and animal husbandry/breeding industry/meteorological teaching Function: temperature/humidity/perpetual calendar/alarm Colour:gray Material:ABS Size:140 x 84 x 25mm Package Contents: 1 * anemometer sensor 1 * receiver Only above package content, other products are not included. Note: Light and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.