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Product Features
  • Provides a visual "Go/No Go" flashing red or green indication of noise levels above or below 85 dBA, helping you to determine if hearing protection may be needed
  • Simple one-button operation with a rechargeable battery
  • Small and lightweight
Delivery options

At Cadmus Products we aim to deliver orders efficiently and at highly competitive rates. 

  • We can ship consignments of all shapes and sizes and hazardous content across the UK and worldwide. Most of our orders are sent via DHL, however sometimes we may use other couriers.
  • If you are purchasing a laboratory product online you can find out the price of shipping checkout. If you are obtaining a quote for a product, then we will email you
    with our best shipping prices along with your quote.
  • Please see our delivery page for full information

The TSI Quest NI-100 Noise Indicator alerts users to potentially dangerous noise levels, helping identify areas where noise assessment may be needed to determine the need for hearing protection.

Users clip the device to a shirt or jacket and its LED light delivers a clear indicator when noise levels exceed a potentially hazardous threshold. Its small size and lightweight design make it ideal for workers in a variety of industries.

Standard features:

  • Provides visual "Go/No Go" indication of noise levels below or above 85 dBA
  • Flashing green indicates noise level is below 85 dBA and flashing red indicates noise level is above 85 dBA and hearing protection may be needed.
  • Simple one-button operation with a rechargeable battery
  • Small and lightweight
  • Clips to lapel or shirt pocket
  • Provides an afforable training tool for helping workers know when hearing protection may be required
  • Increase awareness of hearing conservation guidelines
  • Can be used as a mapping tool to qualify future noise studies

Product Specification

Size: 2" (L) x 1.4" (W) x 0.5" (D)/5.1cm (L) x 3.6cm (W) x 1.3cm (D)
Weight: 0.6oz (17g)
Temperature Operating/Storage: -14 to 122°F / -10 to 50°C
Humidity Range: 0 to 95%; non-condensing
Accuracy: 3 dB
Alert Level: - Flashes red when >85 dBA
- Flashes green when <85 dBA
Battery: Li-Poly (flat cell)* with approximately 200 hours of operating before recharging
Battery Life: Approximately two years of charging cycles
Charging: A mini-USB cable (sold separately) plugs into bottom port of device
Auto-Power Off: The device will power off after approximately 10 hours

*Not certified intrinsically safe
  • NI-100 NOISE INDICATOR (case of 10)
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