Personal experience. I got told by my doctor in the States to go buy one. I bought 4, and took them to the doctor's office. With the nurse, we checked out all 4 of these units and they all showed different numbers, there seemed be no calibration available.
When checked against the mercury, none of them matched.
I returned all 4 and bought 2 new ones (real high end units), again same thing. So decided not be a hypocondriac and measure it myself, just leave it to the doctors.
In short, please have your unit checked against a standard that is used in the clinics. It if matches (or very close to it) then keep it.
Qatar's winter months are brimming with unmissable experiences, from the AFC Asian Cup 2023 to the World Aquatics Championships Doha 2024 and a variety of outdoor adventures and cultural delights.
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BP apparatus.
Personal experience. I got told by my doctor in the States to go buy one. I bought 4, and took them to the doctor's office. With the nurse, we checked out all 4 of these units and they all showed different numbers, there seemed be no calibration available.
When checked against the mercury, none of them matched.
I returned all 4 and bought 2 new ones (real high end units), again same thing. So decided not be a hypocondriac and measure it myself, just leave it to the doctors.
In short, please have your unit checked against a standard that is used in the clinics. It if matches (or very close to it) then keep it.