
You have a discount of -6 or more right out of the box across the board. Because of this, this is the worst product I've bought from Amazon. Not only do they not work, they give you such bad information that you can lose things that you need to know the humidity for. Why do anything at all, what is the use of this product? I am lucky enough to test my hygrometers before using them and I will be returning them.

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