Features: 
<br />1.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;
<br />2.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;
<br />3.12 or 24-hour time display, Perpetual calendar, Time zone setting, Time alarm, High light LED backlight;
<br />4.Four outdoor sensors: thermo-hydro transmitter, wind speed sensor, wind direction sensor and rain sensor;
<br />5. It can upload the data to the web: www.wunderground.com, then you can see the weather information of your weather station everywhere.
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<br />Specification:
<br />1) Outdoor temperature range: -40.0 DEGC to + 65.0 DEGC (-40 DEGF to +149 DEGF)
<br />2) Indoor temperature range: 0 DEGC to + 50.0 DEGC (32 DEGF to +122 DEGF)
<br />3) Humidity range: 10% to 99% (1% resolution)
<br />4) Rain volume display: 0 - 9999mm (show OFL if outside range)
<br />Resolution : 0.3mm (if rain volume < 1000mm) ,1mm (if rain volume > 1000mm)
<br />5) Wind speed: 0~100mph (show OFL if outside range)
<br />6) Measuring range air pressure: 27.13inHg - 31.89inHgResolution : 0.01inHg
<br />7) Alarm duration : 120 sec
<br />8) Transmission range up to 100m (330 feet)
<br />9) Power consumption:
<br />   a)  Receiver: 2 x AA 1.5V batteries (not included in the package, due to it is forbidden by air freight.)
<br />   b)  Sensor: 2 x AA rechargeable 1.5V batteries (not included in the package, due to it is forbidden by air freight.)
<br />10)Transmission frequency: 433MHz
<br />11)Power Type:AAA Battery(not included)
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<br />Package includes: 1 set