How often do I need to calibrate a hygrometer?
Every six months. And calibrate a new hygrometer/humidity sensor before you use it in your humidor—even if that new digital hygrometer says it’s been pre-calibrated.
Over time, ALL hygrometers need to be re-calibrated to make sure their readings stay true. In professional laboratories, hygrometers are regularly calibrated.
The Boveda One-Step Hygrometer Calibration Kit is the easy way to make sure your humidor’s hygrometer readings are accurate. Takes just 24 hours for professional-level results.