No not directly, the thing with traceable units are they can be any accuracy range and still have an nsit certificate. One (4105) of the units on the link you posted is traceable but listed as 1.5ºC +/- that is close to 3ºF up or down, the certificate certifies it is with in 3ºF of accurate up or down but I think I can get that close with my finger. :weirdface quickly looking the ones that are better than one degree also are the ones with the big price tags.
Personally I work with equimpment that needs to be at least 0.5ºF of accurate so I want to have accuracy greater than this. I have come to accept for my animals +/-1ºF (0.5ºC) This is loads accurate for this purpose making the herpstat, ecozone, herpkeeper, helix, all ideal units as they are with in this range.
Averages work, you have three units all measuring with in a degree and a bit they are likely trustworthy the one that is way off mark the incorrect one and move on