I am hatchin my first ever eggs in an incubator. I got a Brinsea 20 with turner for Christmas & I have a Hova-Bator that I borrowed from a buddy of mine. Both incubators came with a little thermometer, the little kind like you would use for a person to check their temperature. I bought two of the hygrometers from Harbor Freight http://www.harborfreight.com/thermo-hygrometer-with-clock-96417.html & checked them with the Honeywell thermostat on my wall for the C H&A. They both were about a degree off so I put one in each bator & adjusted accordingly. When I compare the temps to the little thermometers that came with the incubators there is a big difference. The little thermometers read about 101 F to the digital ones from Harbor Freight that read 99.5 F. Right now I have the little thermometers that came with the bators set around 99.4-6 F & the other ones are readin around 96.8 F to 97.4 F. Which one would you hatch with?