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How to Calibrate a Hygrometer

by Lianne McLeod, DVM
for About.com

4 of 8

How to Calibrate a Hygrometer - Put Hygrometer and Salt Mix in a Bag.

Place salt water mix in a bag, then add the hygromter and seal

The cup with salt and water is placed in a bag (the hygromter should then be carefully placed in the bag, then the bag is sealed)

Lianne McLeod
Carefully place the cup containing the salt/water mix in a re-sealable plastic bag. Place the hygrometer in the bag, away from the cup of salt and water. Note: make sure none of the salt/water mix comes in direct contact with the hygrometer, or the hygrometer may be damaged. Completely seal the bag.

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