hygrometer - which one do i believe?

Discussion in 'Incubating & Hatching Eggs' started by Joey8765, Dec 4, 2010.

  1. Joey8765

    Joey8765 Songster

    May 8, 2010
    i have two hygrometers, one cost $50 which also has a temp monitor
    the other one was like 5 bucks
    they are about 20% different in humidity [​IMG]

    the cat chewed the end off the $50 one but the humidity still goes up and down??

    which one do i believe?
  2. CityGirlintheCountry

    CityGirlintheCountry Green Eggs and Hamlet

    Jul 7, 2007
    Middle TN
    Did you calibrate them? There is a process where you seal them up in a ziplok bag with a glass of wet salt. Whatever the salt/water combination is, the humidity is supposed to end up at 75%. Do google search for hygrometer calibration and see what comes up. I use two different units as well and they are 7 points apart. [​IMG]

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