Product review (5 stars): Easy to read thermometer
I like that I can check the outdoor and indoor temperature to see if it is time to open the windows. We don't need to use air conditioning here in Lake Arrowhead CA if we open the windows when it is cool and close them as soon as the outdoor temperature is has hot as the indoor. This helps me to take advantage of the temperature variation and keep the house comfortable. I am also using this to manage the humidity level in the house.