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TSI Quest · Edge · Noise dosimeter

Quest Edge 8 (EG8)

Current

Intrinsically safe personal noise dosimeter for potentially explosive atmospheres, certified under ATEX, IECEx and UL/CSA Class I Division 1. Shares the Edge 7 feature set: four independent dosimeters, colour OLED display, 1/1-octave capture, event audio recording, voice notes and optional Bluetooth to the Edge dB app. Reporting through Detection Management Software.

Replaced the Quest Edge 5 (EG5). Specifications verified on .

Type
Noise dosimeter
Class
Class 2
Channels
1
Octave bands
1/1
Connectivity
Bluetooth LE 5 (BT models), USB via EdgeConnect docking station
Weight
118 g
Battery life
30 h
Compare with other instrumentsAll noise dosimeters

Specifications

As published by TSI Quest. Fields the manufacturer does not publish are omitted rather than estimated.

Standards and class — Quest Edge 8 (EG8)
SpecificationValue
IEC 61672-1 classClass 2
StandardsANSI S1.25-1991 (R2017), IEC 61252:1993 + A1:2000 + A2:2017
Measurement — Quest Edge 8 (EG8)
SpecificationValue
Channels1
Measurement range70 to 140 dB (RMS)
Peak range110 to 143 dB
Frequency weightingsA, C, Z
Time weightingsF, S
ParametersTWA, Dose, Projected dose, SPL, Lavg/Leq, Lmax, Lpeak, SEL (LEP), UL time, Ceiling count, 1/1 octave bands
DosimetryYes
Exchange rates3 dB, 4 dB, 5 dB
Intrinsically safe markingATEX UL 24ATEX3178, Ex ia IIC T4 Ga, Ex ia I Ma; IECEx UL 24.0016 / IECEx SIM 25.0005; UL/CSA E87792 Class I Div 1 Groups A, B, C, D, T4
Analysis — Quest Edge 8 (EG8)
SpecificationValue
Octave bands1/1
Audio recordingYes
Logging and data — Quest Edge 8 (EG8)
SpecificationValue
Shortest logging interval1 min
MemoryUp to 100 days at 1-minute logging
Hardware — Quest Edge 8 (EG8)
SpecificationValue
Microphone1/2" MEMS, field-replaceable, Type 2/Class 2, colour-coded for IS certification
Display128 x 64 colour OLED
BatteryLithium polymer (flat cell), charged in EdgeConnect docking station
Battery life30 h
Weight118 g
Dimensions (mm)123.4 x 59.2 x 32
IP ratingIP65
Operating temperature (°C)-10 to 50
Connectivity and software — Quest Edge 8 (EG8)
SpecificationValue
ConnectivityBluetooth LE 5 (BT models), USB via EdgeConnect docking station
Remote controlEdge dB mobile app (iOS, Android)
SoftwareDetection Management Software (DMS), Edge dB app

Variants

Variants of the Quest Edge 8 (EG8) as the manufacturer names them
VariantDifference
EG8without Bluetooth
EG8-BTBluetooth Low Energy 5 for the Edge dB app
EG8M-BTBluetooth model; the manufacturer does not explain the M suffix on the spec sheet

Where this data comes from

Manufacturer documents used for this record
KindDocumentAccessed
Product pageQuest Edge 8 Personal Noise Dosimeter
DatasheetQuest Edge 8 spec sheet (P/N 5002866, 2025)

Verified on . Only the manufacturer’s own published material is used; distributor pages are not sources.

Spec out of date? Tell us (reference tsi-quest-edge-8).

Verified owner reviews

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Known issues and firmware notes

Hardware and firmware problems reported by owners, with the firmware version concerned and any manufacturer response.

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Feature requests

Functions owners would like to see in a firmware update or a successor model.

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