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Hand-Held Sound Level Meter,V-Resourcing 30~130 dB Decibel Noise Measurement Tester with Backlight Digital LCD Display for Indoor/Outdoor Uses [Max/Min/Hold Function] Black: Amazon.com: Industrial & Scientific
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Decibel Meter Wall Hanging Sound Level Meter+ Digital Clock + Humidity & Temperature 11 Inch Large LED Display 30-130dB Noise Tester with Alarm Icons for Classroom Home Studio Factory: Amazon.com: Industrial &
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OSHA Caution Industrial Decibel Meter Sign: Ear Protection Required When The Sound Level Is Greater Than 85 dB English 12" x 10" Aluminum Face 1/Each - SCS601 - Jendco Safety Supply
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