TSI Quest EDGE 4+

The TSI Quest EDGE 4+ Noise Dosimeter allows users to monitor personal noise exposure levels in real-time, within Bluetooth range with a mobile application. The ability to monitor from a safe distance allows workers to continue tasks without interruption in a variety of workplace environments. The EDGE 4+ Personal Noise Dosimeter is available in Bluetooth and non-Bluetooth models and features a color screen. The Bluetooth connectivity allows users to monitor multiple dosimeters from the EDGE dB app. The measurement settings can be programmed to test for compliance to various government or association standards including OSHA PEL, OSHA Hearing Conservation, ACGIH, MSHA, and country-specific regulations.
The EDGE dB mobile app allows users to monitor worker noise exposure from a safe distance on a tablet or smartphone.
  • Monitor multiple dosimeters from a distance, minimizing interruptions to those wearing the instruments
  • Keep users safe from potentially hazardous noise levels
  • Mobile app is compatible with iOS version 10.0 or greater, and Android version 4.3 or greater
The Edge 4+ Personal Noise Dosimeter is a powerful and intuitive instrument designed for identifying hearing loss threats.
  • Bluetooth option syncs to the Edge 4+ mobile app for management of a variety of dosimeter functions and viewing of noise exposure measurements
  • Compact, 3-ounce (85 grams) 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
  • Preprogrammed to OSHA Standards - measure against OSHA compliance regulations
  • Lockout Ability - Prevent users from inadvertently terminating a study
  • Detection Management Software - Configure dosimeter as well as intuitively interpret measurements and generate reports for export and sharing of results
  • Manufacturing
  • Safety Consultants
  • Government
  • Energy/Utility
  • Airports
  • Theme Parks and Entertainment Facilities
Functional Requirements Include
Microphone1/4 inch prepolarized condenser (electret) field replaceable threaded microphone
Measuring Range70dB - 140dB
WindscreenRugged foam permanently attached to a threaded mount for maximum protection
ThresholdsSelectable from 70dB to 90dB or none
Exchange Rates3dB, 4dB or 5dB for each dosimeter
Criterion LevelsFrom 70dB to 90dB in 1dB increments
Measurement Settings
RMS Range70dB to 140dB
RMS WeightingA or C
RMS Time ResponseFast or Slow
Frequency WeightingA, C, Z
Peak Detector
Peak Range110dB to 143dB
Peak WeightingSelectable C or Z (Peak is independent of the RMS dosimeter settings)
Displayed Data / Values
+ LAVG or LEQ+ Current Date+ Run Time
+ Exposure+ SPL+ Max Level
+ Min Level+ SEL (LEP)+ Dose
+ Threshold (TR)+ TWA+ Identity Field (assigns a custom name
to The Edge)
+ Peak Level+ Upper Limit (UL)
Displayed Status Indicators
+ Battery+ Memory+ Run/Pause
+ Overload Indication+ Dose Exposure Indicator (Multicolored LED, user selectable)
Docking Station: Single and Five Bay Versions
CommunicationsVia the EdgeDock and USB to PC
Typical Recharge2 to 4 hours
Power / Electrical Characteristics
BatteryLithium Polymer (Flat cell)
Battery Life60+ hours with Display Timeout enabled (20 hours without Display Timeout enabled)
Battery ChargeQuick charge in EdgeDock in 2 to 4 hours. Daily data download with simultaneous battery charging recommended for maximum efficiency
Memory Capacity180 hours
CommunicationsShort haul serial Infrared (SIR) via the EdgeDock
ANSI S1.25 Personal Noise Dosimeters
IEC61252 Personal Sound Exposure Meters
Regional Bluetooth Approvals
+ JAPAN[R]001-P00500
+ CE
Physical Characteristics
Weight3 ounces (85 grams)
Size3.5” long x 2.1” wide x .75” thick (88mm x 53mm x 19mm)
Case MaterialEngineered Polymer
IP Rated65
Keypad4 keys – Up Arrow, Down Arrow, Run/Stop, On/Off, Enter
Display128 x 64 color OLED
RoHS Compliant
Lockable Windscreen
Alligator Clothing Clip / Suspender Clasp
Environmental Characteristics
Operating Temperature Range14 °F to 122 °F (-10 °C to 50 °C)
Storage Temperature Range-13 °F to 140 °F (-25 °C to 60 °C)
Humidity Range0 to 95% Non-Condensing
Additional Features
Device SetupEasy, quick setup via DMS software in Chinese, Czech, English, French, German, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Spanish, Swedish, and Turkish
Data LoggingLAVG or LEQ, Max, Peak and Overload Indication at one minute intervals
Calibration times displayed
Lock out security function (multilevel)