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ND-9 Handheld Digital Sound Noise Level Tester Calibrator for Sound Level Meter 94dB & 114dB output Class I w/ Battery +/-0.3 db Accuracy for microphone , sound measuring system for acoustics field and laboratory use
Regular Price
$139.90 USD
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ND9B Digital Sound Level Meter Calibrator 94dB & 114dB for 1/2" and 1" inch Microphone, Professional Noise Decibel Calibration Tool Accuracy Check with Backlight
Regular Price
$139.90 USD
View
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