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Traceable 98767-13 Calibrated Sound Level Meter, 35 to 130 dB
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Classroom Noise Monitor Apps That Teachers Will Love
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A Noise Level Meter built for the Classroom. | Too Noisy
Online Sound Meter
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Ozito Digital Sound Level Meter 30-130DB - Bunnings Australia
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Amazon.com: Decibel Meter, RISEPRO® Digital Sound Level Meter 30 – 130 dB Audio Noise Measure Device Backlight MAX/MIN, Data Hold Auto Power Off Dual Ranges HT-80A : Industrial & Scientific
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Classroom Noise Monitor Apps That Teachers Will Love