But before we give our comments, there is a paper on research into thermal buffering methods in a paper published by NCSLI. They tested 20% concentrations in several aqueous media in different vial sizes, but found no significant differences.
Instead, their tests determined that the location of the probe inside the chambers had a larger impact. Meaning, whatever buffer you use for whatever probes you use, probe placement within a monitored space is crucial. Placing the buffered probe in the geometrical center of the monitored space will be usually be the most representative of the temperature of the space.
Now you may ask: Does this logic apply to constant monitoring after mapping has been completed and units are in use?
But this is often what people do.
However, these perturbations are things that represent a chamber that is not be properly managed.