What annoys me is the wired one is 8-10% off with humidity. If the humidity read close to the other 2, it would be a perfect thermometer. I might look for a more expensive one that is wired and see how that is. Everyone might be thinking im crazy but if im breeding and have multiple racks, then id like to find a thermometer and stick with that brand and model knowing everything is accurate with each other without having to try to remember that this perticular thermometer reads 8% lower humidity than it should.