Pools are the shipped detector. The same aerial photos were tested against four other things: one clears its own accuracy bar, two do not, and one is a hand-checked measurement with no fixed bar to clear. Tap a row for the control behind the number.
Source: measured on the same Maricopa County, AZ aerial pass as the pool detector, plus a blind hand review of a sample of results. Every number here — including the ones that failed — is reported as measured.