Were the monitors equally calibrated and current prior to comparative testing?
Are the calibrations current (within last 6 months)?
If not current, have they been cross checked for comparison?
Im not too woried about the air check bag. I am sure it will be close and will post it when I get it.
The weather here has been mild so obviously the additional readings for temp/pressure were not affected with the fancy femto tech monitor I now have. I would guess in larger temp swings for hotter or colder weather it would show up.
For 2 afternoons I had the basement door opened around 3 to 5 pm. No changes in temp or pressure but obvious swings on the readings.
should be hours 10 and 11 and hours 34 to 36 roughly
I also had the testee leave the main floor back door open on the first day and some obvious raises in numbers could be seen as well.
Lastly we had a nasty storm blow thru the last evening (hour 66) and that spiked the readings as well.
So here are the results, and as surprised as I am to see not much difference for all 3.
Obviously you can see which one produces the easiest read report.