Product review (5 stars): Great Hydrometer for guitar case
I bought this for my guitar case. I live in an environment that is very dry most of the year so I needed to be able to monitor the humidity in my room and guitar case in order to keep my guitar functioning property. I have had it for a week and it is great. I like the small design and the functions on it make it really easy to work with. For my purpose, I just toss it into my case and let it do it's thing. Only slight against (that some might have) it is that when I turn it off and turn it back on, it defaults back to Celsius but this is no biggie for me.