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  Home » Catalog » Portable Instruments » Noise & Sound » Sound Examiner SE-402 Meter

Sound Examiner SE-402 Meter

Orderable Items The Quest Sound Examiner SE-402 Noise Level Meter, with Class/Type 2 accuracy, monitors, reports, and analyzes noise levels in highly variable environments. The SE-402 is ideal for assessing employee risk by measuring average sound pressure level (LEG/LAVG) over the run time. Use with optional Detection Management Software (DMS) to retrieve, manipulate, report, share, and store data. An intrinsically safe model is available.


  • Easy operation and convenient features that meet your applications
    • User-selectable datalogging intervals
    • User-determined measurement parameters
    • User interface with 12-button keypad
    • Stored session summary data
    • Ready to use

  • Manual user adjustment with external calibrator
    • Calibration history stored and displayed with calibration date/time

  • Tough water and dust-resistant IP-65 rated case with ergonomic soft grip

  • Lightweight design — only 13.4 oz (380.5 gm)

  • Easy-to-read backlit display

  • Over 18 hours of run time with rechargeable lithium polymer battery

  • Integrated with optional Detection Management Software (DMS)

  • Intrinsically safe model available





The Quest Sound Examiner SE-402 Meter is ideal for the following applications:
  • Sound pressure level measurement
  • Occupational noise exposure measurement
  • Environmental noise level measurement
  • Product testing and quality control
  • Maintenance inspections and troubleshooting
  • Research and development



Performance Profile

Accuracy Class/Type 2
Parameters SPL, Lmax, Lmin, LPk (Peak), LEQ/LAVG, Elapsed Time
Frequency Weighing A, C, Z
Response Time Fast and Slow
Range 110 dBA total dynamic range
Overall range 20 to 140 dBA (single range)
Exchange Rates 3, 4, 5 dBA
Status Indicators Run, Stop, Battery Status, OL (Overload), UR (Under-Range) Run-Time, Locked, Locked Status
Power Lithium polymer (2500 mAHr), rechargeable
External Outputs AC/DC
Interface USB
Operating Time < 18 hrs (excluding backlight)
Charging Time 8 hrs
Internal Memory 2 MB
Operating Temperature 14 to 122 F (-10 to 50 C)
Dimensions 11.2 x 2.8 x 1.3 in (28.4 x 7.1 3.3 cm)




The Quest Sound Examiner SE-402 Sound Meter and Detection Management Software make it simple to accurately measure noise levels in highly variable environments. The SE-402 helps to assess employee risk to noise levels by measuring the average sound pressure level (LEQ/LAVG) over the run time. The SE-402 calculates maximum, minimum, and peak levels in order to assist in the noise exposure evaluation. Powered by a rechargeable lithium polymer battery, the SE-402 can operate for up to 18 hours on one battery charge. Users can quickly transfer data to a PC with the USB cable or store data in the 2 MB internal memory.

Detection Management Software (DMS)
Detection Management Software (DMS) makes it easy to retrieve, manipulate, report, share, and store data collected by Quest datalogging instruments for noise dosimetry, sound measurements, heat stress assessment, indoor air quality evaluation and environmental monitoring. Advanced DMS Software is familiar in functionality to QuestSuite Pro II Software but includes many new features:
  • Quick, easy navigation
  • Data sorting into sessions/studies
  • Fast report generation
  • Click, drag, and drop report/graph customization
  • Support for Acrobat PDF
  • Advanced reporting and analysis