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Decibel Meter Sound Pressure Level Meter (SPL) with Backlight Alarm, Portable Sound Decibel Level Meter 30~130dBA, Noise dB Sound Meter Audio Volume Monitoring Instrument Meter for Home Office: Amazon.com: Industrial & Scientific
![Horizontal distance (in metres) versus sound pressure level (SPL) in... | Download Scientific Diagram Horizontal distance (in metres) versus sound pressure level (SPL) in... | Download Scientific Diagram](https://www.researchgate.net/publication/313545566/figure/fig4/AS:614087230779409@1523421213806/Horizontal-distance-in-metres-versus-sound-pressure-level-SPL-in-decibels.png)
Horizontal distance (in metres) versus sound pressure level (SPL) in... | Download Scientific Diagram
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Kkmoon Digital 30 130db Sound Level Meter Noise | Bruel Kjaer Sound Level Meter - Sound Level Meters - Aliexpress
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Kkmoon Digital 30 130db Sound Level Meter Noise | Bruel Kjaer Sound Level Meter - Sound Level Meters - Aliexpress
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