OMRON M500 upper arm blood pressure monitor HEM-7321-D, 1 pcs

i wrote you a review, please send me a reply by email.countrymusic@email.cz

I have owned an Omron M500 blood pressure monitor (HEM-7321-D) for about 3 years. I am planning to buy another one.Because I always measure my blood pressure 3 times and each time the values of my blood pressure are different with a pretty big difference.For example: 1/ 190/95 2/ 150/86 and.3/128/78 Is this normal?Please advise me, if necessary, offer me a really accurate blood pressure monitor that I can rely on.My health condition absolutely requires it.I am a retired physiotherapist.Thank you in advance and I expect professional advice and an offer from you.Go bless you forever