Two Accurite thermometers I've purchased have been HORRID. I thought it was my 'bator refusing to stabilize, turns out it was the Accu-Wrongs. The readings are OK sometimes, but sometimes they drift low... I have nooooo idea why. I gave up and bought an expensive thermocouple thermometer from Thermoworks ($40 for the meter, $40 for the probe) which is highly rated and guaranteed to be accurate w/in one degree. It's got a needle probe, which I inserted into a small soft plastic bottle filled with water. If I can find an egg size medicine vial, that will be a perfect 'egg' to probe. Anyway, thought I'd post about it and am interested to hear if anyone else is having the same trouble with Accu-Wrongs.