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TSI / Quest Edge 4+

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The TSI Quest Edge 4+ noise dosimeter allows users to monitor personal noise exposure levels in real-time with a mobile application. The wireless versions provide the ability to monitor remotely and allows workers to continue tasks, without interruption.

The Edge 4+ dosimeters are powerful and intuitive instruments designed for identifying hearing loss threats in all environments. The unit can be used with the Edge dB mobile app for monitoring worker noise exposure from a safe distance on a tablet or smartphone.

Product Features

  • 16 model types
  • Range of accessories
  • Calibration options
  • Document downloads

Instrument product options

1. Select a model (16 available)

Continue to select accessories

2. Select accessories

3. Select a calibration



  • Bluetooth option syncs to the Edge 4+ mobile app for total management of the dosimeter
  • Compact, lightweight 85 g unit mounts easily to the shoulder
  • Large color OLED display for easy reading
  • LED dose indicator flashes when dose level has been exceeded
  • Equipped with two independent dosimeters that can simultaneously measure against separate industry standards
  • Configurable auto display shut off for increased battery life
  • Ability to monitor multiple dosimeters from a distance, minimising interruptions to those wearing the instruments
  • Keeps users safe from potential hazardous noise levels
  • Mobile app is compatible with iOS version 9.0 or greater and Android version 4.3 or greater

Kit descriptions:

  • The Edge 4+ dosimeter is supplied with a 1/4" microphone, (x2) wind muffs (one with dosimeter and one spare), calibrator adapter and storage case as standard
  • The D in the part number denotes the EdgeDock x1 docking station, USB cable, and power supply are also included in the kit
  • The AC3 indicates AC-300 calibrator included in the kit


Instrument displayed data / values:

  • LAVG or LEQ
  • Exposure
  • SPL
  • Max and Min Level
  • SEL (LEP)
  • Dose
  • Threshold (TR)
  • TWA
  • Peak Level
  • Upper Limit (UL)
  • Run time
  • Date
  • Identity field (custom field name)
  • Battery
  • Memory
  • Run/Pause
  • Overload indication
  • Dose exposure indicator (Multicolored LED, user selectable)

RMS measuring range      70 to 140 dB

RMS weighting      A or C

RMS time response      Fast or slow

Frequency weighting      A, C or Z

Weight      85 g

Size      88 mm x 53 mm x 19 mm

Battery life (typical)      40 hours

Battery recharge time (typical)      2 to 4 hours

Memory capacity      180 hours

IP rating      65

Operating temperature range     - 10 oC to + 50 oC



TSI Quest Edge 4+ dosimeter data sheet

  • Technical Document
  • PDF file
  • 1 MB

TSI Quest Edge 4+ dosimeter mobile application FAQs

  • Technical Document
  • PDF file
  • 849 KB

TSI Quest Edge 4+ dosimeter quick start guide

  • Technical Document
  • PDF file
  • 2 MB
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