Audio3 Ltd. is proud to introduce the soundBadge&reg personal noise dosimeter (PND) and Sound Level Meter (SLM) system. soundBadge is the first wearable noise dosimeter to combine a high-quality integrating averaging SLM that exceeds the IEC-61672 Class-2 standard with a wearable personal noise dosimeter that meets all the requirements of IEC-61252. The device has onboard memory and simultaneously records: Dose, A-weighted level and either C or Z-weighted level every 1/4 second. A and C/Z can be recorded either with fast (1s) or slow (1/8s) time constants. In addition Audio3 Ltd's unique true-peakTM algorithm captures the true instantaneous Cpk level every 1/4 second. And a peak counter counts sound events that exceed 135, 137, 140 and 1 user specified threshold. It has records up to 255 different data files and supports a cumulative recording time of 65 hours. soundBadge accurately measures from 55 dB SPL to 140 dB SPL and from 20Hz to 20kHz with the in-built microphone. A unique sub-measurement + hold function allows making a separate average measurement for Dose, A, C/Z, and Cpk without disturbing a larger ongoing measurement.

The device is powered by a single rechargeable lithium-ion battery that can last 16 hours and is recharged in 3 hours via USB. It can be password protected with a 4 digit code to prevent measurement tampering.

Audio3 Ltd. soundViewerTM PC software accompanies the soundBadge. It presents the soundBadge data files graphically, allowing you to re-analysis and providing you with customizable reporting templates. Zooming on particular areas and re-calculating doses for different time periods is easy and producing the reports is fast and easy too. In addition data can be exported to standard spreadsheets for further analysis.


soundViewer PC program screenshot





  • IEC-61252 Dose


  • Level Range: 60 - 140 dB SPL
  • Frequency Range: 20Hz - 20kHz
  • Accuracy: +/- 2.0dB


  • Maximum, Average (Leq)
  • 135, 137, 140, & User Cpk Counts
  • Battery Duration: 16 Hours
  • Memory Duration: 65 Hours
  • Recording Interval: 1/4 s

Special Functions

  • 4-digit password lock
  • calendar/clock timestamp
  • Sub-measurement capable
  • User defined Cpk threshold
  • Countdown Timer


  • Diameter: 50mm
  • Hieght: 13mm
  • Weight: 35g


  • Easy to Use
  • Graphical display
  • Re-analysis
  • Customized reporting