Atmospheric pressure is measured with a
Paroscientific Digiquartz® Barometer that features
better than 1 microbar resolution and an accuracy of 0.08 hPa over
the extended barometric range of 620 to 1100 hPa. The barometers
are fully thermally compensated with an internal quartz crystal
temperature sensor over the calibrated temperature range of 50
to +60 degrees C.
A high-performance, tuned, dual-pressure-port
arrangement minimizes dynamic pressure errors due to wind. Click
here for NEW TEST REPORT. The
static pressure port is engineered to provide barometric accuracy
of better than 0.08 hPa in strong winds (up to 40 knots), all wind
directions, rain, and freezing conditions.
Pressure hysteresis has been measured to be
less than 8 parts per million of full scale (0.008 hPa). To review
the Barometer Hysteresis Report, click here.
The 5-year limited warranty includes a 3-year
guaranty of stability better than 0.1 hPa per year. All barometers
are stability tested after calibration. Long-term stability
testing has shown drift rates less than 7 parts per million of
full scale per year (0.007 hPa per year). To review the full
Barometer Stability Report, click