I noticed last night that a Caliber IV hygrometer i purchased a couple weeks ago temperature readings began to fluctuate. I am in the process of calibrating the hygrometer that came with my new humidor and have it along with the caliber IV (which has already been calibrated and is spot on) in a clear Tupperware with a Boveda pack. While checking the progress of the calibration I noticed that the temperature reading on the caliber IV would switch back and forth between readings at a 4* increment ( from 69* to 65* and back again about every 10 seconds) And no, I was not opening the Tupperware to check the temperature It remained closed
Curious if anyone here has experienced the same thing or have any answers? Low battery?....Thanks.