MULTI FUNCTION: The weather station not only displays indoor and outdoor temperature and humidity, time (12/24 hour format available), week, date, also shows moon phase, atmospheric pressure, alarm clock with snooze function and weather. A multifunctional device to use, convenient for your daily life. INDOOR AND OUTDOOR THERMOMETER HYGROMETER comes with an outdoor sensor, it can transmit the data to the indoor weather station. indoor temperature: 0+50+14+122.Indoor humidity display range: 20%RH95%RH Outdoor temperature display range: -20+70 -4+158 Outdoor humidity display range: 20%RH95%RH WEATHER STATION: color screen, record pressure change within 1 to last 12 hours. Histogram display of barometric pressure trends for the past 1, 2, 3, 6 and 12 hours with five-level weather forecast: sunny, cloudy, cloudy, rain, rain+snow, let you know the weather conditions better ALARM COLOK SNOOZE FUNCTION: the alarm will display the time, date and week, and it has dual alarm function, snooze function (5 minutes snooze function, gently waking you up the morning). office, hospital, restaurant, hotel, etc. POWERED BY: powered by 2 AA batteries (not included), 5 seconds backlight illumination function, the screen in black color for a low power consumption, clear to see all the time. When powered by the USB cable (package includes), the screen will show colorful light effect for better viewing experience.