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3M™ Noise Indicator NI-100
The 3M™ Noise Indicator NI-100 is a sound level meter that alerts users to potentially dangerous industrial noise levels, helping identify areas where noise control is an issue and where hearing protection may need to be worn.
Learn more about the noise indicator (PDF, 1.7 MB)
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When flashing green, it indicates the noise level is below 85 dBA.
When flashing red, it indicates noise level is above 85 dBA and hearing protection may be needed.
Clip the Noise Indicator to a shirt or jacket. To turn on, press and hold button until double green/red light flashes.
If you have questions or want more information, please contact us.
Where to buy 3M PPE Safety Products. Pricing is available from your local 3M authorized safety distributor.
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