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Title: confusing
Review: The hydrometers (I bought 2) arrived without any instructions regarding usage, mounting , ideal range or ideal location or anything that might be helpful. I wrote to the company and have never heard back. In addition, I bought 2 of them - one rattles and one doesn't when I shake them. I don't know which one is the better one. So, they might be perfect however I have no idea.In addition to that, there was no contact information regarding the seller and when I called Amazon they gave me the totally incorrect company the first time.This was not one of my better shopping experiences.I would still like a good Hygrometer - and perhaps I have them.
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