I have an Airthings Wave Plus gen 1 device that measures radon, and the Airthings app reports 24h and 365d radon readings. The Airthings BLE and esphome airthings integrations include “longterm” radon values, but both of these integrations report different values for the “longterm” radon reading than the 365d value shown in the app. For example, right now, the app reports the 365d reading as 2.8 pCi/L, while the HA BLE longterm value is 1.1 pCi/L. I have not seen any documentation on what “longterm” constitutes, but I was assuming it would be the same 365d interval as in the Airthings app.
Am I missing anything? Is this a limitation of the BLE data? The Airthings web-based integration does not include the “longterm” value, only the BLE-based integrations.