Datasheet

Remark: bracket is an optional item.
3. TESTING METHOD
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． Standard Measurement conditions
Temperature:25 ± 2 ℃ Humidity:45-60%
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． Acoustic Characteristics
The oscillation frequency, current consumption and sound pressure are measured by the
measuring instruments shown below.
B U Z Z E R
S U P P L Y
D C P O W E R A M P E R E
M E T E R M E T E R
d B
M I C R O P H O N E
1 0 0 c m