When I first got this I read the instructions, loaded the correct batteries and turned it on. Even with the remote right next to the display the two indicate different humidity by as much as ten points. After a couple of hours it got closer but still different by a few points.

This has been the most responsive of any of the consumer hygrometers I have tried. It is not a sensitive as my scientific model but is far better than any of the other 3 I have in the house. I paid between 10 and 40 dollars for each of them. I like this one.

Now I can see what the humidity is user my house.

Thanks for the follow up. Your products were more than what I expected, but I can't say enough about the excellent support I received from your staff. I'm hoping to use your products on another project I may have coming up soon.

Excellent item. Easy install. This gives me daily visibility of my crawlspace temperature and humidity. Highly recommended. I will buy again.