I'm not as impressed with the Acu-rites after my little experiment.

Put 2 of them in the same cage. The unit on one side, the probes on the other.

The probes read within 1 degree of each other. The units however, were about 4.5 degrees off.

Oh well, what can you expect for 12 bucks? I do like the one that's wedge shaped over the ones that are slimline, but I can find the slim ones all over the place but not the fat ones. Bleh.