Just remember that household thermometers are only required to be accurate to within 2 degrees and after a couple of uses in a moist, enclosed bator, can then begin to malfunction. I have two Acurites, but one stopped working entirely and the other one is a degree off on temp and 5% high on humidity. I finally got tired of stressing over it and bought an actual incubator thermometer with a real accuracy rating of +/- .18 degree.