A&D Medical PRECISION CHECK PRO Manuel D'instructions page 26

Initial Setup
Transmitting Temporarily Stored Data
In cases when the mobile device cannot receive measurement data,
the measurement data is temporarily stored in the monitor memory. The
data stored in the memory is transmitted the next time a connection is
successfully made to the mobile device. A total of 120 sets of measurement
data can be stored per user. When the amount of data exceeds 120, the
oldest data is deleted and the new data is stored.
Time
This monitor has a built-in clock. The date and time that a measurement
was taken is included in the measurement data. The built-in clock is
automatically adjusted by syncing the clock of a mobile device. Sync of the
time is done in the timing Bluetooth icon lights up, in the pairing process.
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