What are the best digital hygrometer brands? i have a chinese compact hygrometer and a xiaomi hygrometer both use CR2032 battery why some hygrometers use AAA battery? I am looking for a good cheap and highly accurate hygrometer to measure the humidity in my room these hygrometers that I have show 60% while my air dehumidifier shows 35% and I don't know what the truth is Weiterlesen...
