Product review (1 stars): Plan to replace this with your yearly filter
Let me start by saying that I love our humidifier when it works. But we have had to replace this humidistat after 1 year and now again after another 2 years. The one I received to replace it was defective out of the box. so this will make 4 in 4 years. It measured 15% high on the humidity compared to 3 other devices we have that show humidity. So it wouldn't even turn on maxed out at the 45% setting unless the actual humidity was under 30%. Let's hope #4 does better.