Moisture is the biggest enemy for any sensitive product like metal or electronic items. So, in order to ensure the safety of the products it is important to keep a check on the atmospheric conditions of that place where the product has to be stored. This is not only the best rather the cheapest way to know about the atmospheric humidity. Moisture is not the only time where the product has danger from moisture, but even while transportation any item can easily come in contact with atmospheric moisture and many loose its originality. There are various products in market which helps to absorbs moisture from the environment. But how may someone know that which desiccant to use in different humidity situations. To, check the atmospheric humidity with humidity indicating cards and then use the appropriate desiccant.
Now, the question arises that what is the indicator cards made up of, which makes it so much efficient that it is able to analyses the amount of humidity in the atmosphere. The cards have a layer of cobalt chloride solution which is mixed carefully to change its color from blue to various shaded of magenta, red to pink.
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