Measuring humidity in your hygrometer (moisture meter) is dependent on the accuracy of your hygrometer. Calibrate a new digital hygrometer or humidity sensor before you use it, then re-calibrate it every six (6) months to get accurate readings to ensure the safety of your cigars. With Boveda, calibration is one-step easy. (Hygrometer not included.) Use this 75% RH Calibration Kit to: Replace the messy, inaccurate bottle cap salt test Get an accurate RH reading in just 24 hours Calibrate a new humidity sensor, digital hygrometer, or analog hygrometer—even if it claims to be pre-calibrated, it will be inaccurate Re-calibrate each hygrometer or sensor every six (6) months How to use: Place your hygrometer/sensor inside the kit and completely reclose the zipper. Allow the kit to sit for a minimum of 24 hours at a room temperature between 65 and 75°F. Check the reading of the hygrometer/sensor:- If the reading is 75% RH, this calibration is complete.- If the reading is higher or lower than 75% RH: Note the difference as the margin of error for future readings. Or manually adjust your settings to 75% RH and repeat the above three (3) steps. Reclose the bag with the Boveda packet inside to reuse the kit within three (3) months. Recalibrate your hygrometer every six (6) months to keep it performing effectively. DO NOT mix different RH (Relative Humidity) levels within the same humidor. DO NOT use Boveda in the same humidor with other humidification products because they'll counteract each other, and reduce the efficiency of the Boveda Package: The B75 Boveda (75% RH) is not individually wrapped inside the resealable high-barrier heavy-duty plastic bag, which has a zip closure. Lifespan: Opened: Three (3) months Unopened Kit: Up to two (2) years ACCURACY: Boveda maintains inside relative humidity (RH) of +/-2% when using the recommended number of packets. Factors that adversely affect the expected results include a drafty humidor and/or extreme dry ambient conditions
