3 ms·
Do you have two air sensors, or do you just have one indoors and compare it with weather data?
by mikenew 8y ago
Do you have two air sensors, or do you just have one indoors and compare it with weather data?
- pwarner 8y agoI am relying on 2 purple air sensors 10 miles away in opposite directions for an outside estimate. They are usually within 10%, and we are in the same valley, so should be close. I also see when I stop the furnace fan, levels spike. Then drops when I turn on again...