GERATHERM smart GT-1775 Mode D'emploi page 42

Warranty
This blood pressure monitor is backed by a warranty against
any manufacturing defects for three years from the date of
purchase, subject to normal usage. If your blood pressure
monitor does not function properly due to defective parts or
assembly, we will repair it free of charge. Except for the cuff,
all parts of the blood pressure monitor are covered by this
warranty. Damage caused by improper use or handling of
this blood pressure monitor is not covered by the warranty.
Measurement principle
This product uses the oscillometric measuring method to
determine blood pressure. Before every measurement, the
EN
unit establishes a "zero pressure" equivalent to the air pres-
sure. Then it starts inflating the cuff. As it does so, the unit
detects pressure oscillations generated by the pulsation of
the blood flow, thus determining the systolic and diastolic
pressure, as well as the heart rate.
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