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Decibel Meter Digital Noise Meter Portable SPL Meter Range 30-130dB(A) db Meter Noise Volume Measuring Instrument Sound Monitoring Tester MAX/MIN, Data Hold Use for Home, Noisy Neighbor Factory

Bluelab ORP Meter – Handheld Oxidation-Reduction Potential (ORP) Tester with Backlit Display, Replaceable Probe & 2m Cable for Water Quality Monitoring

Professional Sound Level Calibrator Decibel Meter Calibration with Three Calibration Level at 94dB & 104dB & 114dB, SPL Meter Calibrator for dB Noise meter

Decibel Meter Sound Level Meter Professional Sound Level Reader Detector 30dB to 130dB MAX Data Hold, Noise Monitor Digital SPL dB Meter With Alarm, Data Record & Rechargeable Function

Decibel Meter, Tadeto Digital Sound Level Meter Portable SPL Meter 30dB to 130dB(5 Measurement Range) Backlight LCD Display, MAX/MIN Noise Measurement, Audible and Visual Alarms,Data Hold, A/C Mode

Noise Decibel Meter, Gedaye Sound Level Meter Range 35-135dBA, SPL Meter with A Weighted, Data Hold Max/Min, Fast/Slow, Color LCD Backlit Display, Noise Detector dB reader Monitor Audio Measure Device

5-in-1 Decibel Meter - 30-130dB Range Wall Mount Sound Level Meter, 11" Large LED Display Noise, Temperature & Humidity, Time Measurement Meter for Home, Classroom, Wall Hanging Sound Decibel Meter

TestHelper SW-525A Sound Level Meter Tester 30-130db Large Screen Red LCD Display Wall Hanging Type Decibel Noise Measuring with Alarm (Sound Level Meter)