Dimensions:
Receiver: 8" x 12.2" x 1.18"
Sensor: 5.05 " x 1.5" x .83"

All Features:

• Wireless outdoor temperature (°F or °C)
• Monitors indoor temperature (°F or °C)
• 12 Moon phases
• Atomic time and date with manual setting
• Automatically updates for Daylight Saving Time (on/off option)
• 12/24 hour time display
• Perpetual calendar
• Time zone setting
• Time alarm with snooze
• 4 languages to choose from: English, French, German, Spanish
• Wall hanging or free standing

Specifications:

• Wireless outdoor temperature range: -39.8°F to 139.8 °F (-39.8°C to 59.8 °C)
• Indoor temperature range: 14.1 °F to 103.8 °F (-9.8°C to 39.8 °C)
• Moon phase: 12 phases
• Transmission range: Up to 330 Feet
• Transmission frequency: 915 MHz
  
• Power Requirements:
  Clock: 2 "AA" Alkaline batteries
  Wireless sensor: 2 "AA" Alkaline batteries