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Edge 4 Personal Noise Dosimeter


Discontinue Notice – Quest Edge 4 Noise Dosimeters

The sale of the Quest™ Edge 4 Noise Dosimeters will be discontinued after May 31, 2020.

TSI will continue to provide calibration and repair services for the Edge 4 instrument and sell spare parts to channel partners for repairs.

The Edge 4 is being replaced by the new Quest™ Edge 4+ Noise Dosimeter launched in 2019. The Edge 4+ provides enhanced features including; an OLED color screen, longer battery life, and optional Bluetooth communication to the free iOS and Android Edge dB app.

If you are still interested in puchasing the Quest™ Edge 4 Noise Dosimeters before May 31, 2020, please request a quote below.


Product Details

The Edge 4 is a small, lightweight, data-logging noise dosimeter that provides real-time personal noise exposure readings. Designed to be user friendly and intuitive, this noise dosimeter is an excellent solution for personal noise exposure monitoring in a variety of workplace environments.

Industry Applications

  • Commercial Construction
  • Road Construction
  • Military
  • Industrial Manufacturing

Kits include

  • Extra wind screen
  • Calibrator microphone adapter
  • Hard plastic carrying case
  • Quick start guide
  • Product manual on USB

*Additional kit options include docking station and AC-300 calibrator


  • Battery life - 60+ hours
  • Microphone - 1/4 inch prepolarized condenser (electret) field replaceable threaded microphone
  • Measuring Range - 70 dB - 140 dB
  • Dosimeter -  Two independent dosimeters.
  • Convenient Presets – Preprogrammed to OSHA and ACGIH standards.
  • Frequency weighting – A, C, Z
  • Independent Exchange Rates - 3 dB, 4 dB or 5 dB

Features & Benefits

  • Preprogrammed to OSHA Standards | Out of the box ready for safety professionals to measure against OSHA compliance regulations
  • LED Dose Indicator | LED indicator can be programmed to flash when dose level has been exceeded
  • Two virtual Dosimeters
  • Lockout Ability | Prevent users from inadvertently terminating a study
  • Detection Management Software | Offers a variety of functionality allowing the ability to intuitively interpret measurements and generate reports for export and sharing of results