Quote Originally Posted by The Serpent Merchant View Post
Honestly none of those are particularly trustworthy, and the combined error is at least +/- 5 F. I have found that acu-rites tend to give consistent readings, but aren't always accurate. So if you don't have anything else I would go with the acu-rite.

Do you have something like a herpstat/Helix/VE probe that is very trustworthy that you could check your thermometers with?
I don't. I'll check the local pet store tomorrow to see if they have one.