Fingernails must be up when inserting fingers
Declaration: before using this product for testing, please use
medical alcohol to wipe the rubber of finger sleeve first, and
use medical alcohol to wipe the tested finger before and after
using. (the rubber material is medical rubber, which is
non-toxic, harmless and has no side effects such as allergy
to human skin.)
Key function description: in the standby mode, start the key
instrument to enter the working mode, and press the key in
the working mode to change the display mode.
2. Pulse oxygen saturation display range: 35% - 100%
3. Blood oxygen saturation: measurement accuracy: within
the range of 70% - 99% ± 2%, < 70%, no definition of
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Brief introduction of the whole machine
Technical specifications
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Front and back panel
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Power on / mode key
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LCD display mode
1. Display mode: LCD hd display