- Simple to Use
- Place Hygrometer in Bag to Calibrate
- Includes 75% Calibration Boveda Packet
- Good for 3 Months after Opening
- Works with all Calibrate-able Hygrometers
- Hygrometer not Included
To achieve a properly running humidor it is essential to know your hygrometer is providing accurate data. Calibrating your hygrometer is the only way to achieve this. Much simpler and producing better results than the at home salt-water mix method, you will confidently know the reading from your hygrometer is 100% accurate.