Microlife BIOS Diagnostics 3AL1-3E Manuel D'instructions page 27

The classification is based on standards adopted from WHO (World Health Organization); which is recognized
by the Canadian Hypertension Society (CHS).
Refer to the chart below for details of the classification.
180
Red
160-180
Red
140-160
Orange
Yellow 130-140
Green 120-130
Green
WHO
The indicator bar raises according to your measurement.
• If your measurement has only one or two bars, your measurement is in the green zone, or "Normal"
according to National Institute of Health (NIH) standards.
• If your measurement has three bars, it is in the yellow zone, or "Pre-Hypertension" according to NIH
standards, or high normal according to the WHO classification.
• If your measurement has four bars, it is in the orange "Stage 1 Hypertension" zone.
• If your measurement has five bars, it is in the red "Stage 2 Hypertension" zone.
• If your measurement has six bars, it is in the red "Stage 3 Hypertension" zone.
Indication of a
"Optimum" Blood
Pressure
Red
Red
Orange
Yellow
Green
Green
Indication of a "Stage
1 Hypertension"
Blood Pressure
Red
Red
Orange
Yellow
Green
Green
SYS DIA
(mmHg)
110
100-110
90-100
85-90
80-85
120
80
World Health Organization 2003
Indication of a
"Normal" Blood
Pressure
Red
Red
Orange
Yellow
Green
Green
Indication of a "Stage
2 Hypertension" Blood
Pressure
Red
Red
Orange
Yellow
Green
Green
Indication of "Pre-
Hypertension" Blood
Pressure
Red
Red
Orange
Yellow
Green
Green
Indication of a "Stage
3 Hypertension" Blood
Pressure
Red
Red
Orange
Yellow
Green
Green