3. Users can also calibrate either point. To calibrate
33% only, press "ESC" and exit when 33%
calibration is completed. To calibrate 75%
only, press "p" or "q"within 5 minutes while
initializing 33% calibration. To abort calibration,
just turn off the meter.
USB Interface Capabilities
The USB cable and software (optional kit) are required
to transfer data to a PC. Install the USB driver in the
software first before connection.
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