Product review (5 stars): Great for workshops
I bought this to use in my garage workshop.  I love the fact that it shows both the humidity and the temperature.  It also shows the range of temperatures that have occurred.  I assume that this is since the unit has been powered up.  The battery hasn't ran out yet, so time will tell.

I really like the magnet on the back.  I currently have it on my breaker panel cover, but I want to get a piece of metal and screw it to the wall somewhere so I can get a better placement.

I would definitely purchase this again.