You can see a picture in this article:
Here’s a description from Abbott.
Note the last paragraph. About the only problem I see is that it would have to be wiped down after each test if it can be used that way. No one is saying it can do more than one test before another machine is needed. And, if it can, how many tests can it do before it has to be serviced/calibrated, and who’s going to do that. On their first flight, even the Wright Brothers flew only 852 feet. Baby steps here possibly.
rwood