Use Instruction

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1.2 Function introduction:
The electronic peak flow meter is a portable device that can perform lung
function tests. It can be used to measure the maximum expiratory flow rate
(PEF).
The maximum expiratory flow rate (PEF) refers to the highest flow rate during
forced exhalation, also known as the highest expiratory flow rate, the maximum
expiratory flow rate, and the best expiratory flow rate.
PEF can better reflect the patency of the airway, help diagnose and evaluate
asthma, and diagnose and classify the degree of airway obstruction.
1.3 Intended use:
This device is intended for monitoring PEF (Peak Expiratory Flow Rate) for
patient home use. The device is designed for adults and children over 5 years of
age with caregiver supervision.
1.4 Contraindications:
There are no known Contraindications.
1.5 Safety Precautions
:
 Please stop using this meter immediately if it is damaged. Do Not touch any
internal parts to avoid electric shock.
 In order to avoid electric shock or detector failure, do not allow any liquid to
permeate into the meter.
 Do Not use the meter in the presence of flammable materials, solutions or
gases, or in an oxygen enriched environment.
 Any unauthorized personnel should not tamper with the device.
 Only original accessories as specified by the manufacturer can be used with
the device.
 In the event of an accident of any kind arising from use of the device, you
are strongly recommended to inform the manufacturer or your doctor so that
he/she can notify the authorities as required by local legislation.
 Any Changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate the