what is the best blood pressure monitor to buy?
['Omron Healthcare. Heart Guide BP8000-M.', 'Omron. Silver BP5250 (Amazon)', 'Omron. Gold BP4350 (Amazon)', 'Omron. Platinum BP5450 (Amazon)', 'A&D Medical. UB-1100.', 'Equate (Walmart) 4500 Series bp3kc1-3ewm.', 'Omron. 3 Series BP6100.', 'Omron. 7 Series BP6350.']