Features:

1) USB port for easy connection to your PC

2) All the weather data from the base station and weather history data with user

   adjustable measuring intervals can be recorded and uploaded to your PC

3) Free PC software for transfer weather data to PC

4) Rainfall data (inches or millimeters): 1-hour, 24-hour,one week,one month and

total since last reset.
5) Wind chill and Dew point temperature display (°F or °C)
6) Records min. and max. wind chill and Dew point with time and date stamp
7) Wind speed (mph, m/s, km/h, knots, Beaufort)
8) Wind direction display with LCD compass
9) Weather forecast tendency arrow
10) Weather alarm modes for:

a) Temperature

b) Humidity

c) Wind chill

d) Dew point

e) Rainfall

f) Wind speed

g) Air pressure

h) Storm warning

11) Forecast icons based on changing barometric pressure
12) Barometric pressure (inHg or hPa) with 0.1hPa resolution
13) Wireless outdoor and indoor humidity (% RH)
14) Records min. and max. humidity with time and date stamp
15) Wireless outdoor and indoor temperature (° for °C)

16) Records min. and max. temperature with time and date stamp
17) Receive and displays the radio controlled time and date (WWVB, DCF version available)
18) 12 or 24-hour time display
19) Perpetual calendar
20) Time zone setting
21) Time alarm
22) High light LED backlight
23) Wall hanging or free standing
24) Synchronized instant reception
25) Low power consumption (over 2 years battery life for transmitter)
Set includes: 

1) Receiver

2) Four outdoor sensors: thermo-hydro transmitter, wind speed sensor, wind direction sensor and rain sensor

Specifications:
1) Outdoor temperature range: -40.0°C to + 65.0°C (-40°F to +149°F)
2) Indoor temperature range: 0°C to + 50.0°C (32°F to +122°F)
3) Humidity range: 10% to 99% (1% resolution)
4) Rain volume display: 0 - 9999mm (show OFL if outside range)
Resolution : 0.3mm (if rain volume < 1000mm)
1mm (if rain volume > 1000mm)
5) Wind speed: 0~100mph (show OFL if outside range)
6) Measuring range air pressure: 27.13inHg - 31.89inHg
Resolution : 0.01inHg
7) Alarm duration : 120 sec8) Transmission range up to 100m (330 feet)
9) Power consumption:
a) Receiver: 3 x AA alkaline batteries (not included)
b) Sensor WH7: 2 x AA alkaline batteries (not included)
10) Transmission frequency: 433MHz or 868MHz

Packing: 
@4 pcs/ctn, G.W.: 10.00kgs, Dimension: 60.0 x 43.0 x 42.0cm