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Free XPro3

Free XPro3 Thanks to FroggyProfessional* software, Free XPro3 allows Pressure, Temperature, Humidity measurement.

Free running, supplied by 2 AA/LR6 batteries, it is able to measure these 3 data every minute. The memory is about 4096 records. A the rate of 1 record every 15 minutes, the storage capacity is about 42 days, the batteries life time is about 2 years.


Connected to the PC data are downloaded and managed by the software.

Technical informations

   Thermometer Barometer
0,1°C  0,1hPa  0,1%hr
(@ 50% of relative humidity)
Range  -10°C à 50°C 750hPa à 1100hPa
26%hr to 100%hr
(@ 25°C ambiant temperature without condensation) 
Accuracy  1°C
(@ 20°C temperature temp)

  Absolute* : 1,5hPa
Relative** : 1,5hPa

(@ 50% of humidity)

Time constant
 15 minutes 1 minute
40 minutes 

* : in the range of 750 to 1100hPa and at 25°C ambient temperature
** : in the range of 750 to 1100hPa and 0°C to 50°C ambient temperature


More information : PDF Documentation (fr)


You can order this weather sensor on our website

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