Boveda One-Step Calibration Kit 75%
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Description
This is a simple and surefire method to accurately calibrate any digital or analog hygrometer. The kit uses a 75.5% relative humidity standard—widely used and accepted by chemists and lab professionals to determine the accuracy of any hygrometer (also known as the “salt test”). Humidipak’s One Step Calibration kit is used by some of the top museums in the world to calibrate their instruments, including the National Gallery of Art in Washington D.C. Shelf life: 2 years inside the plastic wrapping. Hygrometer in picture not included.
Specifications
- Mounting Accessory
- None
- Hygrometer Type
- Calibration Device
User ratings & reviews
By criteria
By stars
- 4.00
This is a zip lock bag with a boveda. Worth it for the zip lock quality. But you can achieve the same result using a regular one + boveda
DIEGO N. · 10/24/2026 - 5.00
Purchased this in December. I have calibrated 3 hygrometers and have a 4th in the bag now. Thats more than you could ask for. It works, is accurate and it lasts.
Claude P. · 05/17/2026 - 4.50
Works great
Drew D. · 01/06/2026 - 5.00
Best kit in the market.
Alex M. · 12/03/2025 - 5.00
Best and most suggested product to calibrate hygrometers. Excited to get all my ducks in a row !
Alexander B. · 05/07/2025 - 5.00
Makes calibration a breeze.
Mark M. · 02/08/2025 - 5.00
Thank you NEPTUNE
Onca J. · 02/22/2024 - 5.00
The easiest calibration method. Open the bag, insert hygrometer, wait (24hrs), calibrate. Done. It’s reusable up to 3 months as well, so you can do multiple hygrometers. Definitely recommend
nicholas l. · 11/29/2023 - 5.00
Worked very well with all of my hygrometers. Give it some time to really equalize though, especially with the Govee.
Andrew G. · 11/28/2023 - 5.00
Worked just as advertised. Great product
Jose D. · 11/06/2023