Dad has high blood pressure and often needs to check his cardiovascular condition. Are there any reliable instruments?

As far as I know, the more reliable cardiovascular detection instrument is Dr. PASESA's arterial pulse detector, a Japanese patent technology, which can accurately detect arteriosclerosis, and is very accurate in two key values, namely central arteriosclerosis index (AVI) and upper arm arteriosclerosis index (API), and can effectively screen potential cardiovascular patients.