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3M NI-100 Noise Indicator 1.5 in W x 2 in H x.5 in D
(3.8 x 5 x 1.2 cm)

3M  |   Mfr# NI-100  |   Item# EW-50536-07

$46.50 USD/EACH

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  • Easy, durable, noise level detection
This noise indicator alerts users to potentially dangerous noise levels, helping identify areas where hearing protection may need to be worn. The red flashing LED indicates noise levels above 85 dB, and the green flashing LED indicates noise levels below 85 dB. Unit includes a USB port for PC interface for easy battery recharging, and the small, lightweight design makes it easy to clip to a shirt or jacket.

What's included: badge clip and battery
Product Type Sound Meter
Accuracy 3 dB
Dimensions 1.5 in W x 2 in H x.5 in D
(3.8 x 5 x 1.2 cm)
Display LED
Model NI-100
Qty/ea 1
Brand 3M
Power LI-Poly (flat cell battery); approx 200 hours of operating before recharging
Manufacturer number NI-100


at $6.50 USD/EACH

In stock.

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1 Question | 1 Answer
Displaying question 1
  • Q:

    Searching for a low cost, low tech noise meter for a workplace conference room. We are trying to shape the behavior of very loud talking in out meetings.
    Asked on 4/8/2015 by soft talker from Washington, DC

    1 answer



      50536-07 uses a light indicator when levels exceed 85db. To have a digital readout of sound levels, 20250-29 is recommended.

      Answered on 4/8/2015 by Dan from Technical Support
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