3M Noise Indicator NI-100

3M Noise Indicator3M Noise Indicator3M Noise Indicator3M Noise Indicator


Product Description

Product Description

Designed for variable noise environments to help workers identify potentially hazardous noise levels and
know when hearing protection devices (HPDs) may be required.

• Green flashing LED – indicates that noise levels
are below 85 dB where HPDs may not need to be worn

• Red flashing LED – indicates noise levels are above 85 dB,
a potentially dangerous noise level where HPDs may be required.

Small, lightweight design (.6 oz.) clips to shirt or jacket and includes a rechargeable battery that operates
for up to 200 hours between charges. If not manually powered off, device will automatically power off after
approximately 10 hours.

Dimensions: 2″ L x 1.4″ W x 0.5″ D.
Can be used as an effective training tool within a hearing conservation program to help ensure workers know when
and where to wear hearing protection.



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