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Extech 407355-NIST Noise Dosimeter/Datalogger with PC Interface and NIST

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Centech Integrating Sound Level Meter D2023

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PC218 Phase Polarity Checker Detector Audio Speaker Microphone Sound Tester NEW

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Impulse Sound Level Meters Sound Level Tester Noise Meter with 25dB~130dB (A)

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Bruel & Kjaer Product Data Sound Intensity probes & microphone pairs BP 0497-14

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Gain Express Professional Sound Level Meter SLM-24

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Integrating Sound Level Meter Noise Spectrum Analyzer with Range 25dB~130dB (A)

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TDM-1911 Automatic Distortion Meter 0.01%-30% Audio Signal Distortion Analyzer

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ANENG Digital Sound Level Meter Decibel Meter 30-130dB Noise Audio Level Meter

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New Automatic Audio/Signal Distortion Meter Voltmeter Hi-Fi Tuning Tester

$25

RadioShack (33-2055) Digital Sound Level Meter With Box, Manual, Case

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MAX/MIN Digital Noise Meter 30-130 dB - Ideal for Personal & Professional Use