Extech Real Time Sound Octave Band Analyzer (407790)

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This high quality octave band sound analyzer can store 12,280 records and has a range from 30 to 130 decibels. Lets you monitor sound levels in real time and from almost any source.

Extech Real Time Sound Octave Band Analyzer (407790)


  • 407790_S160 x 160 dot matrix backlit LCD
  • Wide 100dB range from 30 to 130dB
  • Memory stores 12,280 records in SLM mode and 1024 points in 1/1 or 1/3 octave mode
  • Stored data can be transferred to a PC and analyzed using software and cable provided
  • A, C, Flat weighting; Fast/Slow response time
  • Internal self test when turned ON
  • Detachable 0.52" (13.2mm) diameter condenser microphone and tripod mount
  • Real time clock with year, month, day, hour, minute and second display
  • Maintain noise level statistics for internal and external audits
  • Comes with Windows 95/98/NT/2000/ME compatible software, Serial cable, 4 x C batteries, mini screwdriver, 120V AC adaptor and case.

This highly accurate band analyzer is great for a wide range of applications including real time monitoring of vehicles and machinery. It is great for monitoring office and plant noise for later review and analysis. Lets you maintain noise level statistics for internal and external statistics.

This is also a great way to perform noise reduction programs and monitor the progress. With a detachable condenser microphone and a rugged plastic outer casing. This real time 1/3 octave band analyzer connects to your PC and features all the necessary software to review and analyze your results.


  • Applicable standards: ANSI S1.4 Type 2, EN IEC 60651, EN IEC 60804, and EN IEC 1260-1995
  • Accuracy: ±1.5dB (ref 94dB @ 1kHz)
  • Measurement range/function: 30dB to 130dB/La, Lc, Lp, Leq, LE, Lmax, Lmin
  • Frequency range: 25Hz ~ 10kHz
  • Sound level meter display: Integrating SLM: Digital, 4 Digits with Bargraph
  • Real Time Analyzer display: Graphical, Bargraph with cursor
  • 1/1- 1/3 Analyzer level range: 30 to 130dB
  • 1/1 Octave and 1/3 Octave: 1/1 Octave band center frequencies: (9 bands); 1/3 Octave band center frequencies: (27 bands):
  • Signal output: AC output: 2 Vrms (at full scale); DC output: 10mVDC/dB
  • Power: Four C size 1.5V batteries, External DC power: 6V, 1A
  • Safety/Warranty: CE approved, one year warranty
  • Dimensions/Weight: 13.6 x 3.9 x 2.4" (345 x 100 x 60mm)/ 33.5oz (950g)

Unit Ship Weight: 5 lbs

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