Weather Station Indoor Outdoor 3-in-1 Weather Thermometer Hygrometer Barometer USB Powered Room Temperature Monitor Battery Operated Humidity Meter Air Pressure Gauge with Sensor Forecast Calendar Moon Phase 12/24-Hour Alarm Clock Snooze Features: [Weather Station] Able to predict weather for next 8 hours: sunny, cloudy, overcast, light rain(snow), heavy rain(snow).  [Outdoor/Indoor Use] Able to monitor the indoor and outdoor temperature, humidity simultaneously. Know the outside weather just by darting a look at the device. [Practical Function] Time can be set in optional 12/24-hours; switchable units between Celsius and Fehrenheit; comfort level indicator icons can display you five conditions from comfortable to uncomfortable. [Supports Up to 3 Sensors] This weather station enables 3  sensors to work simutaneously. You can buy another two sensors for monitoring the temperature of different place. [LCD Backlight] backlight can illuminate for 15s if powered by batteries; and with adjustable 4 brightness level, it can keep lighting if powered by adapter. [Easy Charging] Main station has one USB port for charging electronic devices when power adapter plugged in. [Two Sites to Place it] It can be placed in two-ways, which is available to be hung on the wall or placed on the table.  Note: *Battery not included. *The ice alert symbol appears and alarm sounds when the outdoor temperature at 30℉(-1℃)~ 37℉(2℃). *Only one sensor is included. *Weather forecast: The weather station uses the built-in air pressure sensor to predict the weather conditions for the next 8 hours. The current screen does not display real-time weather. We recommend that you use local professional weather forecasts as accurate information. Specifications: Color: Silver / Wood / Black (Optional) Material: ABS Plug Type: EU Plug Indoor Temperature Measurement Ranges: 14 ℉(-10℃) ~ 122 ℉(50℃) Outdoor Temperature Measurement Ranges: -40 ℉(-40℃)~ 122 ℉(50℃) Indoor & Outdoor Humidity Measurement Ranges: 20%RH ~ 95%RH Barometric Pressure Measurement Ranges: 600 hPa/mb～1100 hPa/mb & 17.72 inHg～32.48 inHg Barometric Pressure Units: mb/hPa or inHg(optional) Temperature Units: ℃ / ℉ (optional) Battery: 2 * AA (battery not included) Item Size: 20.5*3*13cm / 8.07*1.18*5.11in Package Size: 21.6*6.5*14.5cm / 8.5*2.55*5.7in Item Weight: 500g / 17.63oz Package Weight: 550g / 19.40oz Packing List: 1 * Weather Station 1 * EU Plug Adapter 1 * Sensor  1 * User Manual