Product review (5 stars): Very useful for musical instruments
A great find to show the ambient temperature AND moister level of your guitars while in the case, or hanging on the wall! I bought it because I have a Martin acoustic guitar with a crack just under the pick-guard. I'm pretty sure this is due to sitting in my trunk, in August, while waiting for the stage to be completed and last-minute details to be worked out. This caused a delay of almost four hours while the temperature soared to 101 degrees! This also reminded me of why I don't like to play outside gigs in the summer months.