The Corentium Home Radon Meter from Airthings displays the average radon concentrations of the last 24 hours, the last 7 days, and a long-term value (since the last RESET). It can therefore NOT provide hourly values, but only cumulative average values.
Daily average value / 1 Day:
The instrument displays the average Radon value of the last 24 hours. That means, if you look at the instrument on 19.02.2018 at 15 o'clock, the value shows you the average Radon concentration per hour in the period 18.02.2018 from 15 o'clock until the present time, i.e. 19.02.2018 at 15 o'clock.
Weekly average value / 7 Day:
Again, the Corentium Home device shows you the average radon concentration per hour for the last 7 days. This means that on a Monday, the device would show you the average concentration from last Monday to this day.
The device shows you the average radon concentration per hour since the last RESET.