Thermometer and Hygrometer showing different readings. Which to trust?

Discussion in 'Incubating & Hatching Eggs' started by theperdews, Dec 17, 2011.

  1. theperdews

    theperdews Out Of The Brooder

    Dec 5, 2011
    We bought a Hovabator that included a regular glass thermometer, and also a hygrometer with digital humidity and temp readings.

    The digital hygrometer and the glass thermometer are about 2 degrees off in their readings. Unfortunately, I cheaped out and didn't get a fan, which I'll fix before our next attempt at hatching. But I would expect the hygrometer to read the higher of the two, since its sensor might be slightly higher up than the glass thermometer. But it's the other way around: the glass thermometer sits right on the egg turner, and the hygrometer does too but the sensor for it could be higher in the body instead of on the back side of it.

    Anyway, which thermometer should I trust for the incubator temperature? If the glass one wasn't placed correctly on the plastic with the numbers, it could be wrong. But maybe digital hygrometers aren't as correct.




BackYard Chickens is proudly sponsored by