• If there is an alcohol odour in the mouth, it will affect the measurement data to some extent.
• Please check if there are various irritating gases in the surrounding environment.
• Check whether the air inlet of the watch is blocked or flooded. If it is blocked or severely flooded, do not perform alcohol testing.
• There are two modes of alcohol detection: fast detection and standard detection. Please operate the measurement correctly. Use the blowing tube cover during standard mode measurement.

Note: During standard mode alcohol concentration measurement, when blowing into the blowing tube cover, the blowing force should be maintained at level 5 or above, and the blowing time should not be less than 4 seconds.