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รายละเอียด :
This unit was designed according to following standards:
A. International electrician committee standard: IEC PUB 651 TYPE2
B. US national standard: ANSI S1.4 TYPE2
Measuring range:
30~130 dBA
35~130 dBCA. International electrician committee standard: IEC PUB 651 TYPE2
B. US national standard: ANSI S1.4 TYPE2
Measuring range:
30~130 dBA
Accuracy: ±1.5 dB
Digit & Resolution: 5 digit & 0.1 dB
Frequency response: 31.5Hz ~8.5KHz
Measuring level: 30~130, 40~90, 50~100, 60~110, 80~130
Frequency weighting characteristic: A & C
Time weighting: FAST/SLOW
Sampling rate: 2times/second
Microphone:1/2 inch polarization capacitance microphone
AC/DC output
Max reading
Overload indication: OVER / UNDER
Low battery indication
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