New Thermo/Humidity Reader Help

Discussion in 'Incubating & Hatching Eggs' started by Gatekeeper, May 18, 2008.

  1. Gatekeeper

    Gatekeeper Songster

    Apr 24, 2008
    I had an old Thermo/Humidity Combo - I didnt trust it ... I just bought an Acu-Rite which is reading a lot different temps/humidity than the old one by 1.5 degrees and 20% humidity. Without buying a 3rd setup what should I do?

    Anyone have any experience with Acu-Rite? I know a bit late to change horses in the middle of the stream.

  2. SusanJoM

    SusanJoM Songster

    I don't trust the AccuRite brand. I bought three of them at Wal-Mart a few weeks ago and all three failed the salt test miserably (off by 11-14 percentage points).

    I also bought a Smithfield/Taylor ($7-$8.) also at Wal-Mart, and it registered within 2 % points of what it should have. Two percentage points I can adjust for and feel okay with.

    Now I've got a second S/T in the bag with the salt. I'm hoping it does as well.

  3. Chamelle

    Chamelle Songster

    Mar 30, 2008
    Springfield, OR
    I know a lot of people use the acu-rite and seem to have good results with it.

    You can do a salt test, to check the accuracy of the hygrometer.

    Here are the directions I followed, I think they came from Speckled Hen:

    You can calibrate a hydrometer by mixing in a bowl 1/4 cup of salt in 1/2 cup water.

    Place bowl inside a zip lock baggie with your hydrometer. After at least 8 hours, your hygrometer should read 75%.

    If it says, for example 80% you know that it is reading 5% to high and then you can make adjustments in your readings.

    edited to say:
    >>lol I guess I should bite my tongue. Not every one has had good experience with them I guess. My hygrometer is a Taylor and when I did the salt test it was way off.<<
    Last edited: May 18, 2008
  4. Vamp-A-Billy Princess

    Vamp-A-Billy Princess Songster

    Apr 13, 2008
    I just found out about the salt test. I guess my accurite was ok they all hatched. Try the salt thing.
  5. Tuffoldhen

    Tuffoldhen Flock Mistress

    Jan 30, 2007
    I use Acu-rites, have for years and do not have a problem with them...I change the batteries before every hatch and take them out as soon as the hatch is over.....dry the acru-rite out and use for the next hatch...I've only had to buy two in all those years....

    I don't do the salt test either....
    Last edited: May 18, 2008
  6. SusanJoM

    SusanJoM Songster

    Quote:One thing. I think the salt test proportions quoted above are off. I think what you want to do is pour salt into a small container and add just enough water to make it like damp sand. It shouldn't be a liquid. The salt should still have some body to it; you should be able to push it around rather than having it flow. I know that I have read those same proportions several times, but they produce a solution rather than the consistency that I have been led to believe is correct.

  7. SusanJoM

    SusanJoM Songster


    Maybe the best thing to do with an AccuRite is just use it and NOT test it.
  8. Eggseronious

    Eggseronious Songster

    Mar 6, 2008
    East Tennessee
    I have an Acu Rite the temp is off by 1.5, but i know! I have a "Master" calibrating thermometer from Philadelphia Instruments ASTM certified it reads from 94-106* this what I judge all my thermometers by. Then I know where I'm at.
    Last edited: May 18, 2008
  9. speckledhen

    speckledhen Intentional Solitude

    Yes, the salt/water proportions are backward, actually. I think I corrected it in a recent post. You really dont need that much of either, just some really damp salt will do, a couple of Tablespoons of it should even work.
  10. SusanJoM

    SusanJoM Songster

    Quote:Thanks for clearing that up for me.

    Quote:Can you use it for humidity testing?


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