
Figure 5.6 points out the sensor difference of humidity with a maximum at 1.4 %
humidity. Readings in bands around 70 % humidity show a minimum in variations
of recorded measurements among the sensors and also a minimum in variations re-
lating to the reference. The sensors are slightly drifting apart in bands around 70
% humidity. Offsets are decreasing towards ranges around 70 % humidity.
Figure 5.6: Sensor Difference for RH
5.1.2 Pressure - Vaisala PTB210
The PTB210 series barometers offer an excellent solution for outdoor installations
with the need for high reliability and accuracy. Nevertheless, the sensors have been
tested for their operability, accuracy and dynamic behavior in comparisson to a
reference device as well as compared mutual. For this purpose readings within their
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