Dimensions:
Receiver: 4.65" x7" x 1.2"
Thermo-Hygro: 5.5" x 2.8" x 2.5"
Rain Sensor: 5.5" x 5.75" x 2.5"
Wind Sensor: 8" x 10" x 2.75"

• "Records 175 sets of weather data history with "Heavy Weather" PC software
• Upload weather data to your PC with easy COM port connection
• Weather forecasting function with 3 weather icons and weather tendency indicator
• Wireless outdoor temperature (°F or °C)
• Wireless outdoor humidity (%RH)
• Monitors indoor temperature (°F or °C)
• Monitors indoor humidity (%RH)
• Records MIN/MAX temperature with time and date of recording
• Records MIN/MAX humidity with time and date of recording
• Barometric air pressure (inHg or hPa)
• Records MIN/MAX barometric pressure with time and date or recording
• Barometric pressure tendency arrow
• Dew point (°F or °C)
• Records MIN/MAX dew point with time and date or recording
• Wind Direction with LCD Compass (numerical (e.g. 225°) or abbreviated characters (e.g. SW))
• Wind speed (mph, km/h, or m/s, and Beaufort Scale)
• Records MIN/MAX wind speed with time and date of recording
• Rainfall data (inches or millimeters): 1 hour, 24 hour, and total
• Weather alarm modes for: temperature, humidity, wind chill, dew point, rainfall, wind speed & direction, air pressure, storm warning
• Atomic time and date with manual setting
• Automatically updates for Daylight Saving Time (on/off option)
• Perpetual calendar
• Time zone setting
• Time alarm
• EL backlight
• Wall hanging or free standing
• AC power adapter included
• 12/24 hour time display
• Calendar display (weekday, date, month, year)
• Transmission range up to 330 feet (100 meters)

Specifications:

• Wireless Outdoor Humidity Range : 10% to 99%
• Wireless Outdoor Temperature Range : -21.8°F to +157.8°F
• Indoor Temperature Range : 14.1°F to 139.8°F
• Swiss Precision Sensor
  
• Power requirements:
• Receiver: 3 "AA" Alkaline Batteries or AC Power Adapter (INPUT 120V AC 60HZ) Included
• Wireless Thermo-Hygro Sensor: 2 x "AA" Alkaline Batteries or can draw power from the adapter if used
• Wind and Rain Sensors: Power by Thermo-Hygro Sensor