Product review (5 stars): Great piece of mind
This backs up the humidifier numbers and gives me piece of mind that my kids rooms are at a good temp and humidity.  They both have bad allergies so humidity is important, especially since we live in the desert and it tends to get really dry.  I've put 2 of these plus the upgraded backlit version next to each other over night and they were all within a degree of temp and humidity of each other.