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Most Accurate Salt Test | Precise Calibration

Hygrometer Calibration Kit (75% RH)

Sale price$8.99
4.8
Rated 4.8 out of 5 stars
38 Reviews

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Measuring humidity in your humidor is dependent on the accuracy of your hygrometer. Calibrate a new digital hygrometer or humidity sensor before you use it, then re-calibrate it every six (6) months to get accurate readings to ensure the safety of your cigars. With Boveda, calibration is one-step easy. (Hygrometer not included.)
Boveda 75RH and 32 RH Calibration kits.
Hygrometer Calibration Kit (75% RH) Sale price$8.99

Specifications

Product Details
Inaccurate hygrometer readings put premium cigars at risk. Your cigars will smoke perfectly when you store them in a steady environment between 60 and 72% relative humidity (RH). So what’s the RH in your humidor?

Use this 75% RH Calibration Kit to:

  • Replace the messy, inaccurate bottle cap salt test
  • Get an accurate RH reading in just 24 hours
  • Calibrate a new humidity sensor, digital hygrometer, or analog hygrometer—even if it claims to be pre-calibrated, it will be inaccurate
  • Re-calibrate each hygrometer or sensor every six (6) months

HOW TO USE:

  1. Place your hygrometer/sensor inside the kit and completely reclose the zipper.
  2. Allow the kit to sit for a minimum of 24 hours at a room temperature between 65 and 75°F.
  3. Check the reading of the hygrometer/sensor:
    - If the reading is 75% RH, this calibration is complete.
    - If the reading is higher or lower than 75% RH: Note the difference as the margin of error for future readings. Or manually adjust your settings to 75% RH and repeat the above three (3) steps.
  • Reclose the bag with the Boveda packet inside to reuse the kit within three (3) months. 
  • Recalibrate your hygrometer every six (6) months to keep it performing effectively.
  • DO NOT mix different RH (Relative Humidity) levels within the same humidor.
  • DO NOT use Boveda in the same humidor with other humidification products because they'll counteract each other, and reduce the efficiency of the Boveda.

PACKAGING:

The B75 Boveda (75% RH) is not individually wrapped inside the resealable high-barrier heavy-duty plastic bag, which has a zip closure. 

LIFESPAN:

  • Opened: Three (3) months
  • Unopened Kit: Up to two (2) years

ACCURACY:

Boveda maintains inside relative humidity (RH) of +/-2% when using the recommended number of packets. Factors that adversely affect the expected results include a drafty humidor and/or extreme dry ambient conditions.

INGREDIENTS:

Food-grade salt, purified water, and a food-grade thickening agent. 

PRODUCT DIMENSIONS:

Please measure your hygrometer to make sure it will fit in the kit. Non-gusseted bag. 
5.5"/13.97 cm x 7"/17.78 cm

Our Customer Say

97%would recommend this product
4.8
Rated 4.8 out of 5 stars
Based on 38 reviews
Total 5 star reviews: 33 Total 4 star reviews: 4 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 1
Reviews Summary
Customers say this calibration kit is straightforward and effective to use. Many reviews mention successfully calibrating multiple hygrometers in one session. The process typically takes 24-48 hours to complete. While most find it simple to implement, some note size limitations with larger devices. Reviews frequently highlight the kit's ease of use and accuracy. A few mention it's a single-use item and temperature can affect results.
38 reviews
  • MP
    Martin P.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Hygrometer

    Loaded the packet and hydrometer checked out good

  • RM
    Roland M.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    20 seconds ago
    2-way Humidity control 60g packs.

    I already review this. Still working with 65%, 69%, and 72%. It's a 6 week project to bring back from dead (dry) cigars!

  • RL
    Richard L.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    5 days ago
    A Must Have

    I have a humidor that holds 300 cigars and have two blue tooth Boveda sensors. Over time the older sensor was off and needed to be recalibrated. This kit was perfect. Both sensors are dialed in.

  • KC
    Kerry C.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 weeks ago
    And this works too!!!

    Found out one of the two Hygrometers I bought off Ebay was way off...

  • AJ
    Arlen J.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 weeks ago
    Spot on accuracy

    I had doubts about the accuracy of my hygrometer but this showed that it is spot on. Which help me figure out my prior hydration method was not working effectively.