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Decibel Meter Sound Meter 30-130 dB Noise Meter Max/Min/Data Hold Sound Level Reader LCD Display Auto Backlight Digital Sound Level Meter Flashlight Audio Noise Volume Measuring Monitoring Instrument: Amazon.com: Industrial & Scientific
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Xrclif Sound Level Meter Digital Handheld Db Meter Sound Monitor Noise Audio Level Meter 30-130db Decibels Mini Sound Meter - Sound Level Meters - AliExpress
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Digital Sound Level Meter,Sound Meter for Classroom Home Street,30-130dBA dB Meter to Measure Noise,Noise Decibel Reader,Audio Sound Tester,Sound Testing equipmetent,Sound Measurement Device: Amazon.com: Industrial & Scientific
Measuring instruments: (a) sound level meter TES-52A, (b) noise dose... | Download Scientific Diagram
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