Yea! I'm glad you figured out your problem.
TY, I'm not sure I figured it out, but my solution is working for whatever reason so I will not look a gift horse in the mouth...lol
It is nerve wracking. It's suprising how innaccurate these accurate thermometers are.Nice to hear that this one has worked for you! I almost ordered it, but was unsure. I ended up ordering a Brinsea Spot Check, going on their reputation and a couple other folks' recommendations. Same price as that one, but does NOT read humidity. Ugh! I have found the Spot Check to be very accurate. I've bought enough thermometers and hygrometers to stock my own store now! Because I agree, its all so nerve racking, you want a dependable one. But good golly, you would think it would be easier to find one that actually works and works right!