I bought this to go in my new GL case. It is so easy to use and read. I feel like this is more accurate than my old dial hygrometer. I like the way it remembers the highs and lows. It makes me more comfortable having a thermometer in my case.

This device is clear and sensitive to changes in humidity. I carried it to various rooms in my home and watched it change. I have two suggestions for improvement. 1) The adhesive is not strong enough. Less than 12 hours after I affixed this hygrometer to the inside of my case it fell off. Now I have to figure out a way to stick it back on. 2) I wish there was a back light button. I'm a cellist so there are very few places in our cases this device will fit. I stuck it to the side where there's a gap for the C curve. That means to read the display I have to bend over, turn sideways, and stick my head in my case (after removing the cello). Unless you have a flashlight it's a bit difficult to read.