1. Automatically calibrates time, indoor temperature, outdoor temperature, indoor humidity, outdoor humidity, wind speed, wind direction, weather forecast, calendar, and 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-controlled time and date with manual setting options (DCF, WWVB optional) 4. Records min/max indoor and outdoor temperature and humidity. Wind direction (N, S, W, E, NE, SE, SW, NW) displayed with LCD compass. Weather forecast shown by weather icons (sunny, cloudy, rainy) 5. Calendar, 12 or 24-hour time display, wall-mountable, time zone and alarm settings, weather forecast trend arrows, low battery indicator on receiver, weather alarm mode for temperature, heat index, and dew point. Displays indoor and outdoor relative humidity Indoor humidity: 20%–99% Outdoor humidity: 20%–99% Dimensions (H x W x D): 66 x 120 x 22 mm Wind speed range: 0–50 m/s Product weight: 0.42 kg Data update interval: 48 seconds Indoor temperature range: 0°C to 60°C Outdoor temperature range: -40°C to 60°C Temperature accuracy: ±1.0°C Transmitter: 2 x AA 1.5V alkaline batteries (not included) Usage environment: home, villa, agriculture, animal husbandry, breeding industry, meteorological education Functions: temperature, humidity, calendar, alarm Color: gray Material: ABS Size: 140 x 84 x 25 mm Package Contents: 1 x Anemometer sensor 1 x Receiver Note: Light and display differences may cause slight color variation between image and actual item. Measurement error allowed: ±1–3 cm