Galaxy Audio CHECK MATE CM-130 - Manual (Page 4)

SOUND LEVEL METER
2
III. Specifications
Frequency Range: 125Hz to 8KHz
Measuring Level Range: 40dB to 130dB
Frequency Weighting: A/C
Microphone:
1/2 inch electret condenser
microphone
Display: LCD
Digital Display: 4 digit
Resolution: 0.5dB
Display Update: 2 times/sec.
Time Weighting:
FAST
125ms
SLOW 1 second
Level Ranges:
Range1: 40 dB to 70 dB
Range2: 60 dB to 90 dB
Range3: 80 dB to 110 dB
Range4: 100 dB to 130 dB
Accuracy: ± 2dB(under reference conditions
94dB@1kHz )
Dynamic Range: 30 dB
Alarm Function: “OVER” is displayed when the
input is more than the upper limit
of the range.
“UNDER” is displayed when the
input is less than the lower limit of
the range.
MAX Hold function: Holds readings of the maximum value.
Power Supply:
One 9V battery
006P or IEC 6F22 or NEDA 1604.