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%.
Completely maintenance free - no activation required. Easy to use.
Exterior Bag Dimensions: 5.5'' x 7'' Interior Bag Dimensions: Approx 4'' x 4.5''
Lasts approximately one year, good for multiple calibrations. Shelf life before opening is a minimum of 2 years.
Produces an environment of 75-percent humidity. excellent way to calibrate your hygrometer and measure the humidity of your humidor

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 5.7 inch
Height : 0.2 inch
Length : 6.6 inch

Item Weight: 0.48 ounce (View shipping rates and policies)
Shipping Weight: 2.4 ounce (View shipping rates and policies)

ASIN : B000A3UBLA