Easy to use - The unique VA display is characterized by exceptional readability and brightness. Values are readable even at a 70° angle, even without backlighting, by pressing a button on the top. Contactless sensors: Unlike the integrated sensor in a traditional weather station, this unique contactless sensor avoids the influence of heat from the display on temperature and humidity, improving accuracy and sensitivity. No need to set the time manually: current time is transmitted via DCF radio signal with the precision of an atomic clock. The time display has been enlarged for better readability of the calendar and time. IMPORTANT FOR THE THERMOSPHERE - The weather symbols show the forecast for the next 12 to 24 hours. With a quick glance at the digital weather station, you immediately get access to the image, whether it's heavy or light cloudy, sunny, rainy or even snowy. Indoor and outdoor thermometer - Wireless transmission of temperature and humidity thanks to the outdoor sensor with a range of 100 m in open field, up to 3 optional expandable outdoor sensors. Can be hung on the wall indoors/outdoors or placed anywhere. Calendar display: January 1, 2000 to December 31, 2099 Time format: 12h/24h Eight-language weekday display and three-month abbreviation: English, German, French, Italian, Spanish, Dutch, Danish, Polish Dual time alarm, snooze and repeat functions (snooze time adjustable from 5 to 60 minutes) Sunrise and sunset display in 251 cities worldwide Setting of city, time zone, longitude and latitude to display sunrise and sunset time 12-level moon phase and 3-level tide display Temperature detection range: INDOOR: -9.9°C ～ +50°C and +14°F ～ +122°F OUTDOOR: -40°C ～ +70°C and -40°F ～ +158℉ Indoor and outdoor humidity detection range: 20% to 95% Indoor temperature and humidity detection cycle: 60s 3-level indoor mold risk warning display 5-level indoor and outdoor comfort display Upper and lower limit alarms for indoor and outdoor temperature and humidity, and freezing point alarm 433 MHz ASK RF reception of outdoor temperature and humidity 433 MHz ASK outdoor transmitter reception, up to 3 effective RF channels (only one outdoor unit included). Temperature display format selection (°C/°F) Temperature and humidity trend display Daily records of maximum and minimum indoor and outdoor temperature and humidity. Atmospheric pressure unit selection: mb/hPa or inHg Barogram display of atmospheric pressure trends over the past 3, 6, 9, 12, 18 and 24 hours compared to the current day. 6 types of weather forecasts: sunny, cloudy, overcast, light rain, heavy rain. Snowy 3-level pressure trend display Backlight function: Battery operation, backlight lights up for 15 seconds. AC operation: AC operation, backlight is divided into 5 brightness levels (high → low 4 levels, off), and the automatic backlight mode can be activated.