SGP/MET/E11 - Temperature/humidity sensor failed a field calibration check

The temperature/humidity sensor was not calibrated annually during this time. The 
temperature failed a field calibration check on 10/10/2007 (read high), but passed subsequent 
checks until replacement on 4/7/2009.

In general, the relative humidity may have been subject to drift during this time. The 
manufacturer characterizes sensor drift at <1% / year.

Please contact the mentor for specific information regarding the field calibration 

check results, if necessary.

• rh_mean
• vapor_pressure_mean
• temp_mean