Hello,
Just joined the forum, and thanks for having me. I’m testing 3 older Hobo U12 dataloggers against a new U12 datalogger to see how temp and RH differ between the old dataloggers and the new. I’m wondering at what range of difference I would have to get the older dataloggers professionally calibrated. The goal is to get a year’s data from all four loggers. I put all four dataloggers in an archival print box for two days, measuring temp and RH at 15 minute intervals. The average differences in readings are as follows:
New logger vs. old logger #1:
Temp .467938 higher in new logger
RH 1.00795 higher in old logger
New logger vs. old logger #2:
Temp .275845 higher in new logger
RH .788077 higher in old logger
New logger vs. old logger #3:
Temp .405985 higher in new logger
RH .242103 higher in old logger
Thanks for any help!