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Extech SL400 Personal Noise Dosimeter
Extech SL400 Personal Noise Dosimeter
Extech SL400 Sound Meter
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Price: $699.00

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Availability: Subject to availability
Product Code: SL400


Extech SL400 Personal Noise Dosimeter

The Extech SL400 Personal Noise Dosimeter is a compact, lightweight sound measurement instrument with all of the features you need to monitor noise exposure anywhere that sound levels are a concern. For the workplace, it allows you to perform OSHA and IEC accumulation surveys to determine total sound exposure over an 8-hour period so that appropriate protective measures can be implemented. The SL400 can log up to 1 million readings and has a USB interface and Windows software so you can retrieve stored events, analyze real-time measurements, or document data collection results.


  • Measurements sufficient for compliance with OSHA, MSHA, DOD, ACGIH, and ISO standards
  • Measures frequency weighted noise exposure and peak (C, Z) sound level
  • Datalogs up to 999,999 readings
  • Sampling times adjustable between 1 second and 24 hours
  • Sound level mode: displays sound level, min/max, time-averaged sound (Leq), peak, and sound exposure level
  • Adjustable criterion level, exchange rate, and threshold
  • User-defined measurement setup
  • USB interface with Windows compatible software


  • SL400 Personal Noise Dosimeter
  • Belt clip
  • Clip-on microphone with 32 in (81.3 cm) cable and windscreen
  • USB cable
  • PC compatible software
  • 1 x 9V battery
  • Carrying case

Warranty Information

The Extech SL400 Personal Noise Dosimeter comes with a 1-year warranty.

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