Features It is easy to use and is clinically accurate. Keep track of up 90 readings for 2 person. FDA approved. Clear Large LCD display shows all reading and WHO classification indicator in the left side. It powers off automatically about 3 minutes. It has an irregular heart beat indicator as well as a low battery indicator. 4pcs AAA identical 1.5V alkaline batteries operated or AC/DC adapter (Not Included). Large Size Blood Pressure Cuff (8.6-16.5 Inch Circumference)Measurement tips 1. Test the same time every day. 2. Sit down and keep quiet for 5-10 minutes. While testing sit in a relaxed position with your feet straight in front of you and your arm resting on the table. Do not cross your legs. 3. Remove any garment and wrap the cuff on your upper arm. Lay your arm on a table(palm upwards) so that the cuff is at the same height as your heart. 4. Press the START/STOP button, the pump begins to inflate the cuff, it will measure your BP automatically, wait 1 minute, the systolic, diastolic and pulse rate will appear on the display. 5. Press "SET", the people 1 or people 2 will appear, press "MEM" choose one and press "Start/Stop" to store. 6. We recommend you measure three times each time at an interval of five minutes. Longer time interval might be needed for different personal health status. Warm tips Blood pressurelevels are divided into four categories: Normal blood pressure (≤ 120 / 80mmhg) Prehypertension (120-139 / 80-89mmhg) 1-stage hypertension (140-159 / 90-99mmhg) 2-stage hypertension (≥ 160 / 100mmhg) Note: Arrhythmia and arteriosclerosis patients should be measured by medical staff for professional diagnosis.
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