Product review (4 stars): Serves my needs.
Bought our first house this spring and the home has baseboard heat. Figured all houses get a little dry in the winter but especially baseboard heated houses, so I got these to go with a humidifier my grandpa gave me, who also had a 60's style ranch home with baseboard heat. So far I have no complaints. It gives me a good idea of when a room is too dry, I put the humidifier in there and watch the humidity go up. So it serves my needs and I'm happy with the purchase.