With regard to my earlier suggestion of using eithernet instead of wifi, where a wifi signal is marginal for the outside AQI, I have since thought of a better idea.
I would like to see an inside AQI unit with the option to connect a wired outside AQI sensor to the inside AQI unit. With a suitable display on the inside AQI unit, you could see both inside and outside AQI
For sharing outside AQI data, the inside AQI unit (which also has outside AQI data when an outside AQI sensor is connected) could be connected to a router by an eithernet connection.
Advantages, Flexibility and Reliability
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If the Internet went down, you could still see displayed both the inside and outside AQI
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The system could be used independently to display inside and outside AQI at locations where there is no internet
Note, some high risk of smoke areas have no internet as well as no cell phone coverage.