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REED R8080-KIT-NIST Data Logging Sound Level Meter and Calibrator Kit,
LATNEX Sound Level Meter Type 2 with Calibration Certificate SM-130DB - The Home Depot
Digital Sound Level Meter Fluke 945 | Fluke
REED R8050 Sound Level Meter, Type 2, 30 to 130 dB, includes Traceable Certificate
Amazon.com: Digital Sound Level Meter Calibrator 94dB & 114dB for 1/2" and 1" inch Microphone, Professional Noise Decibel Calibration Tool Measurement Accuracy Check : Industrial & Scientific
Appendix A12.2: Calibration Certificates Sound Level Meter Calibration Certificate
Reed R8060-NIST Sound Level Meter with Bargraph - High Tech Systems & Equipment Inc.
SL-4023SD-CC / Industrial Sound Level Meter Datalogger Records Data to SD Memory Card With Calibration Cert.
PCE-322A-ICA Sound Level Meter with ISO Calibration Certificate
Amazon.com: SM-130DB Digital Decibel Meter Reader and Sound Level Meter Type 2 with Calibration Certificate. Measurement Device for Environmental and Mechanical Noise Monitor - Manufacturing, Office, Classroom : Industrial & Scientific