The technology used in the A&D UA-704, to measure blood pressure, has passed in a validation study, in a general population, according to a recognised standard protocol, as published in a peer-reviewed publication.
Kobalava ZD, Kotovskaya YV, Rodionov E. Validation of semi-automatic device UA-704 for self-measurement of blood pressure. Blood Press Monit. 2005 Aug;10(4):223-5. PMID: 16077269.
BHS:1993 - Pass (A/A) General population