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time weighting selection
FAST：Fast sampling measurement, 1 time per
125mS.
SLOW：Slow sampling measurement, 1 time per
second.
⑥MAX/MIN button: Maximum and Minimum
hold
Press this button for one time to enter MAX/MIN
measurement, ‘MAX’ will appear on LCD,
maximum sound level will be captured and held
until higher sound level is captured. Press the
button again, ‘MIN’ will appear on LCD and
minimum sound level will be captured and held
until new lower sound level is captured. Press
the button one more time to exit MAX/MIN
measurement.
⑦ LEVEL button: Level range selection
Each time you press “LEVEL” button, the level
range will change between ‘Lo’ level, ‘Med’
level, ‘Hi’ level and ‘Auto’ level in the circular.
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