Features:

• Indoor Humidity (%RH)
• Wireless Outdoor Temperature (°F)
• Indoor Temperature (°F)
• Projects Time or Outdoor Temperature (alternating) on Wall or Ceiling in Easy to Read Numbers
• Projection & Arm Rotate for Proper Viewing
• Automatic Focus of Projection
• Atomic Time with Manual Setting
• Can Automatically Update for Daylight Saving Time
• 12 Hour Time Display
• Time Zone Setting
• Time Alarm with Snooze
• LED Backlight & Free Standing

Specifications:

• tx7u

  Indoor Humidity Range: 1% to 99%
• Wireless Outdoor Temperature Range: -21.8°F to 156.2°F
• Indoor Temperature Range: 14°F to 99.9°F
• Projection Arm Rotates Up to 90°
• Transmission Range: Up to 80 Feet
• Transmission Frequency: 433.92 MHz
• Power Requirements:
  Clock: 2 "AA" Alkaline Batteries or AC Power Adapter (included)
  Wireless Sensor: 2 "AA" Alkaline Batteries

Actual Size:  3.6" x 5.52" x 1.9"