Boveda One Step Hygrometer Mess Free Calibration Kit – Preloaded 75% RH 2-Way Humidity Control – Hygrometer Accuracy – Precise Test for Digital and Analog Hygrometers and Humidity Sensors – 1 Count

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About this item:

  • PRECISE HYGROMETER READINGS: Our on-step hygrometer calibration kt makes sure your hygrometer is giving accurate readings. Precisely calibrate digital and analog hygrometer and humidity sensors, so they give accurate relative humidity (RH) readings of what’s going on inside a wooden storage box. Even if your hygrometer says it doesn’t need to be calibrated, it does—every 6 months. A perfectly calibrated hygrometer will read 75% or 32% RH.
  • EASY & MESS-FREE CALIBRATION: Simply place a hygrometer or humidity sensor in the airtight bag with the enclosed Boveda humidity pack. Zip closed and check back in 24 hours. If a hygrometer doesn’t read 75% RH, adjust by the number of points it’s off, then re-test. For added accuracy, do a 2-point calibration with a 32% RH Boveda calibration Kit. If your hygrometer reads above or below that number, adjust the calibration by the number of percentage points it is off from 75% or 32% RH
  • REUSABLE: Good for 3 months after opening (2 years if unopened in original packaging). Re-calibrate a hygrometer or humidity sensor every 6 months to keep it performing effectively. The One-Step Calibration Kit is a simple and surefire method to accurately calibrate any digital or analog hygrometer or humidity sensor.
  • ULTIMATE SALT TEST: Inaccurate Hygrometer readings put premium sticks at risk. Precisely calibrate digital and analog hygrometer and humidity sensors, so they give accurate relative humidity (RH) readings of what’s going on inside a humidor. Do-it-yourself calibration methods, like bottle cap salt tests, are imprecise and inaccurate. Good for three months after opening!
  • ABOUT US: Boveda devoted the past 23 years to the science of two-way humidity control, we know you will benefit from our commitment to precision. Becoming the global leader in any category does not happen overnight, but Boveda did this and continues to do so since 1997. Today, that persistence looks like millions of two-way humidity control packets getting shipped out each year to protect your finest rolls.
  • Review:

    4.9 out of 5

    98.46% of customers are satisfied

    5.0 out of 5 stars Looks Easy(?)

    C. · October 2, 2024

    The idea is elegant! The magic potion inside the sealable envelope will maintain a stable humidity inside the envelope that your hygrometer must match.Leave it in there for a couple of hours (8, actually) and see what your hygrometer reads through the transparent bag. Then, take it out and turn it up or down, depending on how many clicks or turns it takes to match. Stick it back inside the back to make sure you got it right.I believe that—as long as the bag remains well sealed—the magic goop inside remains potent to maintain the set humidity. (But I used to believe in the tooth fairy as a kid too.)

    5.0 out of 5 stars Works Well and Accurate

    S.S. · June 2, 2024

    I use humidity sensors in terrariums. With high humidity sensors will raise the humidity as much as 10% in only a few months. For me accuracy is very important. The Boveda calibration kit worked very well for me bringing the calibration within 1% of the 75% target. I especially like the size as I can calibrate more than one sensor at a time. Depending on the size of your sensors they will fit 2 or more. This best part is the accuracy and ease of use.

    5.0 out of 5 stars It's easy to calibrate your hygrometer.

    D.L.B. · October 15, 2024

    It's very easy to use. Just place your hygrometer in the bag, seal it. 24 hours later, your hygrometer is calibrated. Put it back to work in your humidor. Don't toss the bag away! It's good for 3 months!! Inexpensive fix!!

    4.0 out of 5 stars Small Bag

    h. · January 7, 2025

    The bag is small and my Hygrometer has been calibrated and this bag is now showing it off by 5 higher compare to using a ziplock bag with salt which is a guaranteed calibration. I have not talked to Boveda about this but considering what the Boveda pack does and releases in the air, this makes me consider that re-calibration is needed because of Atmosphere change of this product. Of course I bought this for testing and installing a Hygrometer in a cigar box. With the hygrometer sitting right over the pack this does not change the fact what the Boveda pack will do in the cigar box when the Meter is not right over it.With FBI terrorism rising and the FBI hacking accounts across America. My full review wasn’t posted and edited live while typing. I applied an update on certificates knowledge for the public after studying and chemistry test on Boveda products and it was edited out and for those missing it. It’s all over Fox News about Federal Terrorism by the FBI. And all the Government Terrorism the entire agency is guilty of. That’s if it’s not filtered out in your area.01/25/25 Update: I doubt this has anything to do with defectiveness of product but this test kit has the zip lock seal ripping off the bag where it seals shut after about 15 uses. The bag didn’t last the full cycle of the pack. That’s on Boveda, buyer beware.

    5.0 out of 5 stars Incredible

    M. · January 7, 2025

    This is a perfect product.

    5.0 out of 5 stars It's a bag. Accurate.

    t. · October 25, 2019

    It's a simple product. A bag with a pouch inside. You put hygrometer in, zip it up, wait for it to read 75%. Can be used for up to 3 months after first opening.So I bought an AcuRite hygrometer and wanted to calibrate it just to see how accurate it was (I'm just using the hygrometer for my home this winter). I don't know if I was lucky, or if the AcuRite hygrometer or this calibration kit were super accurate, but as you can see in the picture, mine read exactly 75% humidity. Nice.CALIBRATION NOTE: Calibration may take some time! I think any negative reviews for their hygrometer or this kit come from people who may not know how slowly moisture content changes, especially with calibration. The calibration kit says to keep it in the calibration bag for a minimum of 24 hours. I highly recommend keeping it inside for longer.Straight out the box, I hung my unit for a day and it read somewhere between 60 and 65% humidity in the house. I put it inside this calibration bag and it took 3 days to get to 71%. I almost took it out and calibrated it up 4 percentage points (to 75%), but I kept it inside. Next day it read 72.8% and since it was increasing, I thought to wait and see how high it would get so I left it. I ended up forgetting about it and four days later it was at 74.9%. That’s when I took pictures with it still in the bag. Upon moving the bag for the pictures, the reading fluctuated to 75, 75.1, then back to 75. But I mean, you can’t get much more accurate than that.THE POINT IS THAT IT TOOK LIKE A WEEK TO CALIBRATE EXACLTY TO 75%, so that’s why I recommend leaving your hygrometer to calibrate for definitely longer than a day, and wait before writing a bad review for a “bad” hygrometer or "bad" calibration kit. Moisture is a fickle thing! Unlike temperature.By the way, this is ONE bag. Picture shows "2" bags only to show the front and back.

    5.0 out of 5 stars Calibration is important for cigar storage

    R.Y. · August 6, 2024

    Amazing idea from Boveda. Small little airtight back with a 10 gram 75% RH pack that you can calibrate your hygrometers in just a few hours, depending on climate. Even if your hygrometers cannot be calibrated, this is a for sure way to know how off they are so you can get an accurate reading when you need to.

    5.0 out of 5 stars Works great

    M. · November 18, 2024

    As described and worth purchasing

    WORKS AS ADVERTISED

    P.f.L. · November 4, 2024

    Works as advertised to calibrate an hygrometer.

    Está bien

    J.A.S.M. · January 22, 2025

    Está bien

    Correct

    G. · September 27, 2024

    Adapté pour calibrer un hygromètre.

    Essential tool

    B. · July 31, 2024

    Very useful tool which you need to calibrate it properly. Put your hygrometer in the bag and forget about for a day or two. Check it back and see if it matches the humidity.

    Funciona bien.

    M. · June 19, 2021

    Cumple su función y te evitas estar poniendo tapas de plástico con sal. La bolsa es más gruesa y resistente.

    Boveda One Step Hygrometer Mess Free Calibration Kit – Preloaded 75% RH 2-Way Humidity Control – Hygrometer Accuracy – Precise Test for Digital and Analog Hygrometers and Humidity Sensors – 1 Count

    4.7

    BHD6005

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    Product origin: United States

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