Well .. Yes. But sooner or later you have to learn to test properly for varroa.
The OA strips are a good idea and at the same time (and I hadn't come across this previously) this looks like a really good little device for sugar rolling and on the same Abelo page as the strips.
https://www.youtube.com/watch?v=AMyA6ajHZKE
I use a modified kilner jar with a varroa mesh centre to the lid in place of the usual glass plate and it works but ... I rather like that the above device leaves the varroa separated from the bees and contained ... clever idea. I commend it to the panel of authorities - I think I might splash out on one.