Boveda One-Step Hygrometer Calibration Kit

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  • Simply place your hygrometer inside the bag, close the zipper, and wait 24 hours. A perfectly-calibrated hygrometer will read 75% RH. If your hygrometer reads above or below 75%, adjust the calibration by the number of percentage points it is off from 75%.
  • Produces an environment of 75-percent humidity
  • Interior Bag Dimensions Approx 4" x 4.5"

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