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professional decibel meter for measuring two independent sources of sound signals
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Sound Level Meters
Protmex PT6708 Sound Level Meter, Digital Decibel Reader Measurement, Range 30-130 dB, Accuracy 1.5dB Noise Meter with Large LCD Screen Display, Fast and Slow Selection (Batteries Include): Amazon.com: Industrial & Scientific
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Life Basis Decibel Meter LCD Digital for Noise Environmental Monitorin – LifeBasis
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SoniChek Sound Level Meter | Noise Level Meter | 3550 Decibel Meter — Triplett Test Equipment & Tools
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Sound level meter - Wikipedia
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Sound Level Meter
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Life Basis Decibel Meter LCD Digital for Noise Environmental Monitorin – LifeBasis
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