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How to calibrate your hygrometer

question

How do I calibrate my hygrometer?

Answer

To check if the hygrometer is reading correctly, you can use a calibration kit for best results. Our Boveda One-Step Calibration kit is used in laboratories worldwide to test the accuracy of hygrometers.

Another way to test the calibration of your hygrometer is the salt method. Here's how to test your hygrometer using the salt method:

Place a teaspoon of salt in a bottle cap or small cup and dampen it with a few drops of water (without dissolving it).
Carefully place the wet salt and the hygrometer inside a see-through container and close tightly. You can use a zip lock bag provided it seals well and you leave some air inside as well.
Let it sit for at least 6 hours and note the reading on the hygrometer without opening the container. The hygrometer should should read 75%. The difference is how much your hygrometer is off. For example, if your hygrometer reads 70% during the salt method test this means that to obtain the real humidity level you should add 5 points.
If you have an analog hygrometer, you can correct the reading. You will need to adjust the needle to the 75% mark by turning the screw on the back using a small screwdriver. Your hygrometer is now ready to be placed inside your humidor.

	By Luzzie Normand
	Co-Founder & Editor; Neptune Cigars Inc.

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A Neptune User 02/09/2011

very informative

A Neptune User 08/10/2010

Excellent, thanks for the GREAT information

A Neptune User 03/12/2010

JUST what i was looking for thanks

A Neptune User 07/31/2009

great thanks

A Neptune User 01/28/2009

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