The WS-2000 specifications are quoted below. Confirmation of the validity of these specifications can only be accomplished in a laboratory environment where the variables are carefully controlled and precisely measured.

Data from this station is submitted to the NOAA every 15 minutes. NOAA compares the data from this station with similar stations located nearby. In the case of this station, its nearest neighbor is more than 24 miles away. It is well known that all meteorological parameters can, at times, show wide variability over this distance scale. NOAA also uses a computer model that generates meteorological parameters for comparison with those from this station. This produces an on-going evaluation of the data quality. See the page labeled "Data Quality" for the results of the computer analysis.

Wind Speed (Anemometer):
Range: 0 - 150 m.p.h.
Resolution: 1.0 m.p.h.
Accuracy: +/- 2% of full scale
Wind Direction:
Range: 16 points of compass rose (22.5 degrees)
Temperature:
Range: -66 degrees to + 166 degrees F
Resolution: 1 degree F
Accuracy: +/- 1 degree F
Relative Humidity:
Range: 0 to 100 % R.H.
Accuracy: +/- 2% at 25 degrees Celsius
Temperature Compensated from -40 degrees to 85 degrees Celsius
Barometric Pressure:
Range: 16.3 inches mercury to 32 inches mercury
Digital offset for site altitude - (6120 msl for this site)
Accuracy: +/- 0.05 inches mercury
Temperature Compensated from -40 degrees to 85 degrees Celsius
Rainfall:
Range: Unlimited Tipping Bucket with 8 inch diameter collector
Resolution: 0.01 inches (= 1 tip of bucket)
Accuracy: +/- 2% at 1.0 inches rainfall per hour
Working Temperature: > 32 degrees F
Dew Point Temperature:
Dew Point Temperature is calculated.
Range: -40 degrees F to 140 degrees F
Accuracy: +/- 2 degrees F

Note:These are factory claimed specifications. Spot wet and dry bulb temperature comparisions have been made using a sling psychrometer. The results confirm the temperature and relative humidity measured by the WS-2000. In addition, the rain guage has been calibrated by slowly dropping a calculated amount of water into the guage and verifying the WS-2000 tipping bucket count.