Boveda One-Step Calibration Kit for Cigars — 75% RH Salt Test for Hygrometers | 1-Count

Calibrate with Confidence

For serious cigar storage, a reliable hygrometer is only as good as its calibration. The Boveda One-Step Calibration Kit offers a precise, ready-to-use salt test that helps you verify RH readings inside your humidor without mess or guesswork. This is about verifying what your devices show, so you can better gauge how your cigars are really resting.

What’s inside and how it works

The kit arrives preloaded with a saltwater-based 75% RH pack inside an airtight bag. This controlled environment creates a stable reference point so both digital and analog hygrometers or humidity sensors can be checked against a known RH value. The process is simple: seal the bag with the hygrometer inside, wait a day, and compare the reading to 75% RH. If the result differs, you can adjust and re-test to confirm accuracy.

• Precise calibration for digital and analog hygrometers and humidity sensors, helping readings reflect actual RH inside your humidor
• Patented saltwater-based pack provides a reliable 75% RH environment for a quick, self-contained test
• Mess-free workflow: insert the hygrometer, seal the bag, and wait a day for a readout you can trust
• Get a reading in about 24 hours; if it’s off, adjust and re-test; for enhanced accuracy, pair with a 32% RH kit (sold separately)
• Reusable for multiple hygrometers and sensors; good for 3 months after opening (2 years if unopened)

Tips for reliable results

• Do not mix different Boveda RH levels within the same humidor, and avoid combining Boveda with other humidification products that could counteract each other
• Calibrate on a regular schedule, such as every 6 months, or whenever you suspect readings may be off

Why calibration matters for your cigars

Accurate RH readings help you understand whether your cigars are stored in environments that support flavor, aroma, and burn quality. While this kit does not guarantee specific outcomes, it provides a practical, reproducible method to verify your equipment’s performance and make informed adjustments as needed.