Features : 1.Perpetual Calendar Up to Year 2099 2.Time in optional 12/24 hour format 3.Two Daily Alarm Function 4.Automatic snooze function (OFF or 5~60min) 5.The weather forecasting function 6.Humidity: Indoor & Outdoor measurable range: 20%RH ~ 95%RH 7.Temperature alternatively in C or F 8. Outdoor thermometer and frost alert 9.Temperature: Temperature measurement ranges: 0C (22F) to 50C (122F) 10.Minimum/maximum display for air humidity and temperature 11.Three level display mold risk and comfort level Wireless Outdoor Sensor: Wall Mount or Table Stand One Wireless Thermo Sensor Included 433.92MHz RF transmitting frequency 60 meters transmission range in an open area Power Supply: Power plug: EU/US Weather Station: Battery: 3 AA batteries and (not included in the package) USB power cable input: DC5V Wireless Outdoor Sensor: Battery:2 AA batteries(not included in the package) Package Contents: . 1 Color weather station . 1 Wireless sensor . 1 USB power cable