Dimensions:
Receiver: 4.33" x 6.67" x 2.92"
Sensor: 6.25" x 1.7" x 1"

All Features:

• 24 Forecast Icons based on temp & air pressure readings, suggest what kind of weather to expect & what to wear
• Barometric Pressure Tendency Arrow
• Forecast Icon Based on Changing Barometric Pressure
• Wireless Outdoor & Indoor Humidity (%RH)
• Records MIN & MAX Humidity
• Indoor Comfort Level Icon
• Wireless Outdoor & Indoor Temperature (°F or °C)
• Records MIN & MAX Temperature with Time & Date Stamp
• Projects Outdoor Temperature & Current Time (alternating)
• Adjustable Projection Brightness and Location
• Atomic Time & Date
• Automatically Updates for Daylight Saving Time (ON/OFF option)
• 12 or 24 Hour Display
• Perpetual Calendar Display
• Time Zone Selection
• US Time Zone Map
• Dual Alarms with Adjustable Snooze
• Can Receive Up to 3 Sensors
• EL Backlight
• Free Standing
• AC Power Adapter Included

Specifications:

• Indoor Temperature Range: +14.2°F to +139.8°F (-9.9°C to +59.9°C)
• Outdoor Temperature Range: -21.8°F to +157.8°F (-29.9°C to +69.9°C)
• IN/OUT Humidity Range: 1% to 99%
  
• Power Requirements
  Receiver: 3"AA" Alkaline batteries (optional)
  Sensor : 2 "AA" Alkaline batteries (optional)
  AC Power Adapter Included