Wavecom DT-8852 - METER INTERFACES AND CONTROLS; Power Button and External Power; USB and Audio Signal Outputs

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Press “HOLD” button,
The hold function freezes
the reading in the display.
⑾Power button
Turn the meter power ON/OFF
⑿
External DC 9V power supply
terminal
For connection with DC 9V power supply.
Aperture size: external diameter: 3.5mm,
internal diameter: 1.35mm
⒀USB interface
USB
signal output is a 9600 bps serial
interface.
⒁ AC/DC signal output earphone outlet