temp resolution, accuracy, are the big ones for me, I have not seen it quoted any where. Probe response time, Triac cycle, are curiosities for me, and does the unit monitor its self and shut down in the event of a detected failure? The manual is only a page a a bit and IMO is not really finished yet. I hope that it gets actually edited into a decent document, for myself (it is just the way I am) have specs on what the unit is capable of is critically important especially with an incubator for all I know it may have a +/- 2ºF like johnson ranco or worse 2ºC of the hydrofarms. I don't think this is the case but I don't know either and I don't like guessing.