Product review (5 stars): Great product at great price
Excellent, easy to use. I stuck the outdoor sensor between my closed bathroom window and screen which is left in year-round. Very accurate for 6-7 months now. Replaced an old wired one that finally died. I have dry eyes so monitoring humidity inside and out is as important as temp for me. Matches readings on other gauges within a degree or two. Humidity within 3-5% match. Close enough for me.