ShortPress — 1 second LongPress — 3 seconds
• When turned o, short press to turn on the tester; long press to
enter parameter setting.
• In calibration mode or parameter setting, short press to return to
measurement mode.
• In measurement mode, long press to turn o the tester, short press
to turn on/o backlight.
• In measurement mode, long press to turn on/off Bluetooth
®
receiver. When it's turned on, will be flashing; when it's
connected to smartphone, will stay on.
• In parameter settings, short press to change parameter (Uni-
directional).
• Long press to enter calibration mode.
• In calibration mode, short press to conrm calibration.
• In measurement mode, when Automatic Hold is turned off, short
press to manually lock or unlock readings; when Automatic Hold is
triggerd, short press to unlock the reading.
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