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Auto or manual ranging (3 ranges)
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RS232 computer interface
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Large easy-to-read LCD display
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“A + C” frequency weighting
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AC output signal for use w/ Dataloggers
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Electret condenser microphone for high accuracy & long-term stability
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Internal 94dB calibration
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Meets IEC 651 Type 2 requirements
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Data Hold, Max Hold, Min/Max function & low battery indication