3M N1-100 noise indicator

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The 3M N1-100 noise indicator alerts users to potentially dangerous noise levels, helping identify areas where hearing protection may need to be worn. Users simply clip the noise indicator to a shirt or jacket and the LED delivers a clear indication (red or green flashing LED) when noise levels exceed a potentially hazardous threshold.

An important safety issue that confronts many industries, including mining, is loud noise and how to control it. The noise indicator’s small size and lightweight design makes it easy for workers to utilise it in a variety of industries and therefore address the issue at a local level. It also utilises a rechargeable battery that operates for up to 200 h between charges.

The noise indicator can also be used as an effective training tool within a Noise Management Program (consult AS/NZS1259 series) and to help ensure workers know when and where to wear hearing protection.