Product review (4 stars): Worth the Money
I was concerned about the humidity levels in the house during the dry winter month's when the forced air furnace is sucking out what little moisture there is in the air. I placed a few of these around the house in different locations and began monitoring. I also purchased two small humidifiers and these monitors seem to work OK. I know the temp is right by comparing to other sources, not sure how accurate the humidity levels are, but they do work. I am noticeably more comfortable when the humidity level is higher.