Dimensions:
Receiver: 9.31" x 9.5" x 0.75 "
Sensor: 5.5" x 1.6" x 1"

All Features:

• Weather forecasting function with 3 weather icons and weather tendency indicator
• Wireless outdoor temperature (°F)
• Monitors indoor temperature (°F)
• Monitors indoor humidity (%RH)
• Barometric tendency arrow
• Atomic time and date with manual setting
• Automatically updates for Daylight Saving Time (on/off option)
• 12 hour time display
• Perpetual calendar
• Time zone setting
• Time alarm with snooze
• 3 languages to choose from: English, French, Spanish
• Wall hanging or free standing
• Swiss precision sensor

Specifications:

• Indoor humidity range: 1% to 99%
• Wireless outdoor temperature range: -21.8°F to 157.8°F
• Indoor temperature range: 14.1°F to 99.8 °F
• Transmission range: Up to 330 Feet
• Transmission frequency: 433.92 MHz
  
• Power Requirements:
  Clock: 3 "AA" Alkaline batteries
  Wireless sensor: 2 "AA" Alkaline batteries