From what I have read that there other competitors in the race to sell portable detectors.
They technology is real and quiet accurate. It’s who will be first and who has the best technology and who will have a global beast backer, like GE, behind them.
https://www.prnewswire.com/news-releases/cerebrotech-visor-receives-fda-clearance-300577570.html
a can smell a big winner.....right place right time.
all imo
