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Symbol Designations：
1. Analog bar graph
2. Indicates UNDER range
3. Indicates OVER range
4. Measurement Display Area
5. Indicates Auto Mode
6. Indicates Manual Mode
7. Sound units: dB
8. Low Battery indicator
■ Operating Instructions
1. Press the On/Off key to turn the unit on. The meter
defaults in auto-range mode. AUTO displays on
the LCD. The Analog bar graph and digital
display indicate the measured value.
If the UNDER or OVER symbol appears, it
means that the measured sound is out of range.
2. To set range manually, press the Auto/Manu button.
MANUAL will be displayed. Press the Up or
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