Can I calibrate my hygrometer using any RH Boveda?
No, you cannot use Boveda 49% RH or High-Absorbency 49% RH packs to calibrate a hygrometer. Designed for use in musical instrument cases, these Boveda achieve a relative humidity range, as opposed to a specific* RH, so they would not be effective for calibrating your hygrometer.
Here are the Boveda you CAN use to calibrate a hygrometer:
- 58% RH
- 62% RH
- 65% RH
- 69% RH
- 72% RH
- 75% RH
Here’s how to calibrate a hygrometer with Boveda:
- Put your hygrometer or humidity sensor in an airtight environment. like a Tupperware® container or Ziploc® bag.
- Tightly close the container or bag.
- Check back in 24 hours.
- If your hygrometer reading doesn’t match the RH printed on the Boveda pack, adjust by the number of points the hygrometer is off, then re-test using the same Boveda.
For added accuracy, use the professional-level One-Step Calibration Kits.
Do not mix Boveda RH levels in the same container when you are calibrating your hygrometer.
* In an airtight environment, these Boveda are accurate to +/- 2% of the RH printed on the pack.