Boveda One-Step Calibration Kit

Humidi-Pak One-Step Hygrometer Calibration Kit - Humidipak Patented One-Step Hygrometer Calibration Kit is used to check the accuracy of your hygrometer. The One-Step Calibration Kit produces an environment of 75-percent humidity. To calibrate, place your HygroSet� Digital Hygrometer into the ziplock bag (included). If adjustment is necessary, your HygroSet� features an adjustment knob to zero in on the correct humidity reading. The HygroSet� is the first digital hygrometer in the cigar industry to have this feature.