The technology used in the Andon KD-595, 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.
Wu N, Zhang X, Wang W, Zhang H. Validation of the Andon KD-595 for clinical use and self-measurement according to the European Society of Hypertension International Protocol. Blood Press Monit. 2016 Apr;21(2):124-7. Epub: 2015 Nov. doi: 10.1097/MBP.0000000000000164. PMID: 26544523.
ESH-IP:2010 - Pass General population