26
3. Using the Unit
Symbol Information:
• If your systolic or diastolic pressure is 
outside the standard range, the Heartbeat 
symbol ( ) will blink when the 
measurement result is displayed. 
Recent research suggests that the following 
values can be used as a guide to high blood 
pressure for measurements taken at home.
This criteria is for home blood pressure measurement. 
For professional office blood pressure measurement criteria, 
please refer to Chapter 8.
• Your blood pressure monitor includes an 
irregular heartbeat feature. Irregular 
heartbeats can influence the results of the 
measurement. The irregular heartbeat 
algorithm automatically determines if the 
measurement is usable or needs to be 
repeated. If the measurement results are 
affected by irregular heartbeats but the result 
is valid, the result is shown together with the irregular 
heartbeat icon. If the irregular heartbeats cause the 
measurement to be invalid, no result is shown. If the Irregular 
heartbeat symbol ( ) is shown after you have taken a 
measurement, repeat the measurement. If the Irregular 
heartbeat symbol ( ) is shown frequently, please make 
your doctor aware of it.
Systolic Blood Pressure Above 135 mmHg
Diastolic Blood Pressure Above 85 mmHg