I suggest reading the linked document!
DECN's coronavirus testing technology relies on "IMPEDANCE", which IS NOT A CURRENTLY ACCEPTED CANDIDATE for an FDA EUA Waiver.
The only currently approved serologic test method is based on detecting blood-borne anti-bodies. DECN's process does not actually detect blood-borne anti-bodies.
Per the FDA, the DECN approach can be defined as an "Alternative Technology" and, per the linked document, is a candidate to be "discussed" with the FDA.