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Features:
- 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 Accuracy: ??1.5 dB Digit & Resolution: 5digits & 0.1 dB Frequency response: 31.5Hz ~8.5KHz Sampling rate: 2times/second Microphone: 1/2 inch polarization capacitance microphon.
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