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Amazon.com: VLIKE LCD Digital Audio Decibel Meter Sound Level Meter Noise Level Meter Sound Monitor dB Meter Noise Measurement Measuring 30 dB to 130 dB A/C Mode (Batteries Not Include) : Industrial

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Amazon.com: GOLDCHAMP Decibel Meter, Sound Level Meter, Noise Meter 882A Portable 30-130dB Sound Tester with 5 Digits LCD Display dBA/DBC Noise Tester, AC/DC Output, Fast/Slow Selection for Sound Quality Control : Industrial

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Amazon.com: BROAIMX Professional Sound Level Meter Decibel Meter, Portable 30-130dBA Range Spl Meter, Max, Data Hold A/C Mode Noise Meter with LCD Backlight (Batteries Included) - 3 Years Warrenty : Health &

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Amazon.com: BAFX Products - Decibel Meter/Sound Pressure Level Reader (SPL) / 30-130dBA Range - 1 Year Warranty (Standard) : Industrial & Scientific

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Amazon.com: BROAIMX Professional Sound Level Meter Decibel Meter, Portable 30-130dBA Range Spl Meter, Max, Data Hold A/C Mode Noise Meter with LCD Backlight (Batteries Included) - 3 Years Warrenty : Health &

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5-in-1 Decibel Meter Wall Hanging Sound Level Meter 30-130dB Range 11 Inch Large LED Display Noise+Time+Temperature & Humidity Meter Wide Applications for Home, Studio, Factory, Classroom Noise Meter: Amazon.com: Industrial & Scientific