Product review (2 stars): Temp accuracy okay but RH not very good.
I have only had this item for one day but accuracy is a concern. I placed the indoor unit and outdoor sensor next to each other on a table indoors. After 12 hours the temperature readings are within two degrees. Not so bad. The humidity however had greater variation. The indoor read 50% and outdoor 55 to 56% percent. This morning I took the outdoor sensor outside to see how it compared to various sites that report weather conditions for our town. Much bigger variation here. Multiple local sites were reporting around 80% RH while the weather station reads 58-60%. So when testing indoors the outdoors sensor was reading 10% higher than the indoor unit. Outside it is reading 25% lower than local conditions.