Features: Multifunctional Weather Station: large touch screen with backlight, clearly display time/date/calendar/temperature/humidity/air pressure/moon phases and tides/city sunrise and sunset, and more. Clock Function: time in 12-hour or 24-hour format, two daily alarms, automatic snooze function (OFF or 5~60min), perpetual calendar up to year 2099. Hygrothermograph Function: display temperature and humidity, with 20%~95%RH of indoor & outdoor humidity measurement range, -9.9~50C (15F~122F) indoor temperature measurement, and -40~70C (-40F~158F) outdoor range, minimum/maximum display for air humidity and temperature, and temperature/humidity trend. Weather Station Feature: weather forecasting function, sunrise and sunset time (select city), moon phases and tides, outdoor temperature upper and lower limit alert and frost warning, display of indoor comfort and mildew risk. Wireless Outdoor Sensor: wall mounted or table stand sensor with 433.92MHz RF transmitting frequency, which has 60 meters transmission range in an open area. Up to 3 wireless outdoor sensors can be connected. (package includes 1 wireless outdoor sensor) Atmospheric Pressure Function: 600~1100 hPa/mb(17.72~32.50 inHg) atmospheric pressure measurement ranges, the histogram shows the historical trend of the 24-hour atmospheric pressure. Day of Week in 7 Languages Display: English, German, Italian, French, Spanish, Netherlands and Danish. Specifications: Material: ABS Indoor & Outdoor Humidity Measurement Range: 20%~95%RH Indoor Temperature Measurement: -9.9~50C (15F~122F) Outdoor Temperature Measurement: -40~70C (-40F~158F) Power Supply: Weather station: 2 * LR6 AA or DC5V/1.2A; outdoor sensor: 2 * LR6 AA Weather Station Size: 167 * 128 * 30mm / 6.57 * 5.04 * 1.18in Sensor Size: 97 * 50 * 30mm / 3.82 * 1.97 * 1.18in Item Weight: 260g / 9.17oz Package Weight: 525g / 18.52oz Package Size: 17.8 * 14 * 7.4cm / 7.01 * 5.51 * 2.91in Packing List: 1 * Weather Station 1 * Outdoor Sensor