Everything seems to working great now. I honestly don't know what it was but the readings are stable besides a couple tenths of fluctuations but that seems normal to me. Also all my thermometers and temp guns are right on what the herpstat says so that make me more confident of the devices I've been using for years.
Thank you for replying to this post it really reflects on your company! I'm completely satisfied with my purchase and as my collection grows I know I'll be using herpstats to keep them safe. Thanks again, I truly appreciate it!