AGPtek C101B1 Guide De Démarrage Rapide page 7

parameter
And short press the button
( ＜ 1s) for selecting parameter.
Then,
parameter
confirm.
Long press button

It will enter parameter setting
interface. As the display as
Pic.1: You can select the SpO2
parameter from 85 to 99 for
warning.
Then, continue to long press

setting
just wait
to
interface.
for
stabilize
4
the
and
(＞2s).