TSI Quest · NoisePro · Noise dosimeter
Quest NoisePro DLX (NP-DLX)
DiscontinuedBelt-worn cabled personal noise dosimeter of the NoisePro family (NP, DL, DLX-1, DLX), widely used for occupational noise exposure surveys before the shoulder-mounted Edge series. The manufacturer lists it as discontinued and recommends the Quest Edge 4 as its replacement.
Specifications verified on .
Specifications
As published by TSI Quest. Fields the manufacturer does not publish are omitted rather than estimated.
| Specification | Value |
|---|---|
| Dosimetry | Yes |
Where this data comes from
| Kind | Document | Accessed |
|---|---|---|
| Product page | NoisePro DLX Noise Dosimeters (discontinued products) |
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Spec out of date?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-noisepro-dlx).
Verified owner reviews
Reviews from people who own and use this instrument, each checked against a serial number by a person.
Opens in November 2026. Own this instrument? Register your interest.
Known issues and firmware notes
Hardware and firmware problems reported by owners, with the firmware version concerned and any manufacturer response.
Opens in November 2026. Own this instrument? Register your interest.
Feature requests
Functions owners would like to see in a firmware update or a successor model.
Opens in November 2026. Own this instrument? Register your interest.
Read next
- How to choose a noise dosimeter · IEC 61252, exchange rates, criterion levels, badge vs cable, intrinsic safety, logging and audio.
- Sound level meter calibration and verification · Field calibration vs laboratory calibration, IEC 61672-3, ISO 17025, intervals, reading a certificate.
Related instruments
More from TSI Quest
- Quest Edge 4+ (EG4P) · TSI Quest
- Quest Edge 5 (EG5) · TSI QuestDiscontinued
- Quest Edge 7 (EG7) · TSI Quest · Class 2
- Quest Edge 8 (EG8) · TSI Quest · Class 2
Other noise dosimeters
- NoiseBadge Intrinsically Safe (Model 22) · Pulsar Instruments
- dBadge2 · Casella
- dBadge CEL-35x · CasellaDiscontinued
- doseBadge5 Personal Noise Dosimeter (CR:120A) · Cirrus Research