Boveda One-Step Hygrometer Calibration Kit 32% RH

Rated 4.0 out of 5 stars
5 Reviews

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Even if your hygrometer says it doesn’t need to be calibrated, it does—every 6 months.

Find out if your hygrometer is giving accurate readings with the Boveda One-Step Calibration Kit, an easy-to-use, professional-level salt test. For just a few dollars more, check readings at either end of the RH spectrum with the 2-point calibration kit, which includes both the 75% RH and the 32% RH tests. Double your peace of mind—ensure your hygrometer is giving you accurate high AND low readings.


Individual product dimensions: 5.5" x 7"

Inaccurate hygrometer readings put premium cigars 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.

Patented Boveda is the ultimate salt test! Do-it-yourself calibration methods, like bottle cap salt tests are imprecise and inaccurate.

Easy, mess-free calibration—Simply place a hygrometer or humidity sensor in the airtight high-density bag with the enclosed Boveda humidity pack. Zip closed and check back in 24 hours.

Get precise RH reading in just 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 One-Step Calibration Kit (sold separately).

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.

Do not mix Boveda RH levels within the same humidor, and do not use Boveda in the same humidor with other humidification products. They will fight against each other and reduce the efficiency of the Boveda.

3 Steps to Protect


Place Boveda in your humidor right on top of your cigars or use a Boveda Holder. If your Boveda is wrapped in a clear overwrap, remove the overwrap first before putting Boveda in your humidor. Boveda is FDA compliant food safe.


Boveda will begin working immediately to precisely stabilize the humidity levels in the humidor.


Know with confidence that your collection is protected. Enjoy the perfect smoke, every time.

Our Customers Say

Rated 4.0 out of 5 stars
Based on 5 reviews
Total 5 star reviews: 3 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 1
80%would recommend this product
5 reviews
  • JA
    Jordan A.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    13 seconds ago
    Works like a charm

    Another great product from a great company. Not all hygrometers are alike so following instructions is important for best results.

  • TG
    Tom G.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Calibration Kit

    Helps keep all my hygrometers in the room and in my guitar cases accurate and consistent.

  • RB
    Robert B.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    4 months ago
    Good calibration but only single use.

    Wish it would still work a second time some months later after resealing the bag.

  • TS
    Tobias S.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    Boveda i best

    Good product

    And the best client support i've ever seen.

    It was worth every cent i will purchase it here again

  • M
    I do not recommend this product
    Rated 1 out of 5 stars
    1 year ago
    One-Step Calibration Kit (bad purchase)

    The non-permeable bag won't accommodate mid-sized or larger hygrometers...

    might be fine if you have a mini or micro sized hygrometer but for me this "Calibration kit" was a complete waste of time & money.

    "Zero" stars in my book

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