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Bruel & kjaer Modular Precision Sound Level Meter Type 2231 | eBay
Sound Level Meter Digital High precision Decibel Monitoring Logger Noise Tester Sound Detection Instrument Equipment SD Card|Sound Level Meters| - AliExpress
ACOUTO Excellent Sensitivity And Precision Digital Sound Level Meter, LCD Display Sound Level Meter, Sound Level Meter, For Home For Car - Walmart.com - Walmart.com
HT-8851 Precision Sound Level Meter (Thermosense Direct)
US-Instrument Services. Bruel & Kjaer 2232 Sound Level Meter
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RION NL-14 PRECISION SOUND LEVEL METER | Premier Equipment Solutions, Inc.
Model 735, Datalogging Digital Sound Level Meter with RS-232 Software and Cable - B&K Precision