4
Frequency weighting: A/C
Time weighting: FAST ( 125ms ), SLOW
( 1s )
Microphone: 1/2 inch electret condenser
microphone
Display: 4 digits LCD display with a
resolution of 0.1dB
Display Update: 2 times/sec.
MAX hold: Hold the Maximum reading
MIN hold: Hold the Minimum reading
HOLD: Hold the readings
Alarm function: “OVER”is when input is
more than upper limit of range.
“UNDER”is when input is less than upper limit
of range.
Analog output : AC/DC outputs from
earphone outlet
AC=1Vrms ，DC=10mV/dB
Data output : USB data traffic
Auto power off :
Meter automatically
shuts down after approx. 15 minutes of
inactivity.
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