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Extech 407790
Octave Band Sound Analyzer

  • Wide 100dB range of 30 to 130dB
  • 160 x160 dot matrix backlit LCD displays Leq, LE, Lmax, Lmin and Lp
  • Built-in memory stores up to 12,280 records in SLM mode and 1024 data points in 1/1 or 1/3 octave mode
  • Stored data can be easily transferred to a PC via RS-232 interface and analyzed using software & cable provided
  • A, C and Flat weighting with Fast or Slow response
  • 25Hz to 10kHz frequency response
  • Meets ANSI and IEC Type 2 standards
  • Internal self test when powered ON
  • Detachable 0.52"(13.2mm) diameter condenser microphone and Tripod mount provided on rear
  • Analog AC/DC recorder output
  • Real time clock with Year, Month, Day, Hour, Minute and Second display
  • Optional microphone extension cable for measurements in enclosures and other remote locations (407764-EXT)

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Extech 407790 Shown

Product Information
Datasheet 113 KB
Manual 1.2 MB
PDF Help
Ordering Information
Model Description Buy Online Price
407790Extech 407790 Octave Band AnalyzerDiscontinued
407790-NISTExtech 407790-NIST Octave Band Sound Analyzer With NISTDiscontinued
Included Accessories
  • (1) Microphone wind cover
  • (1) CD with PC software
  • (1) Serial cable
  • (4) Type C size batteries
  • (1) Adjustment screwdriver
  • (1) 120VAC adaptor
  • (1) Carrying case
Optional Accessories
407764-EXTExtech 407764-EXT 15' Microphone Extension CableDiscontinued

*NOTE: Items ordered with optional NIST calibration will require
approximately 10 days to complete the certification.