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Precision Sound Meter - BTMETER BT-882A Digital Decibel Tester for 30~130 dB Noise Level Measurement with A/C Fast/Slow Weighting, Large Backlight Display: Amazon.com: Industrial & Scientific
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Amazon.com: Decibel Meter Digital Sound Level Meter with Data Record Function 30-130dB Range High Accuracy db Meter with LCD Backlight Time Display : Industrial & Scientific
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