It is highly recommended to use a new mouthpiece for each test for
hygienic causes.
The mouthpiece should be discarded at a recycling center after use
Performing the measurement
Step 1. Press the Power button for 1 second. The
screen will display the total number of tests
performed first, and then the previous test result will
be shown.
Note. If you press and hold down the button for
more than 5 seconds, the device will be turned off.
Step 2. The countdown will be started automatically.
Step 3. When the countdown reaches zero with a
double beep sound, “BLOW” will flash and the
screen will display three dashes ( )Blow through
the mouthpiece for 4 seconds until there is a double
beep sound.
Note. The blowing time may be longer or shorter
depending on the intensity of blowing.
Tick part(Blowing part)
Narrow part (Insertion part)
Tear this part of
plastic bag
Plastic bag
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