Extech Real Time Sound Octave Band Analyzer (407790A)

In stock

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 (407790A)


  • 3.5" (320x240) TFT color LCD with backlight
  • Wide measurement range in 5 ranges from 30 to 130dB
  • Stores readings on microSD card
  • A, C, and Z weighting; fast or slow response
  • Internal self test when turned ON
  • Detachable 0.52 inch diameter condenser microphone and tripod mount
  • Real time clock with year, month, day, hour, minute and second display
  • Comes with Windows compatible software, microSD card, USB cable, batteries, screwdriver, microphone, wind screen, 120V AC adapter, and case
  • Uses 4 C batteries

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.

Unit Ship Weight: 5 lbs

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 functions:          Lp, Leq, LE, Lmax, Lmin, L05, L10, L50, L90, L95,

Frequency range:                   25Hz ~ 10kHz

Frequency Weighting:             A, C, and Z

Time Weighting:                      Fast, Slow, 10ms (τ), I

Display:                                  3.5" (89mm) 320x240 TFT color backlit LCD; Displays 1/1, 1/3, and 1/1 & 1/3

1/1- 1/3 Analyzer level range 5 ranges in 10db steps: 20 to 90dB, 20 to 100dB, 20 to 110dB, 30 to 120dB, 40 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: 1 Vrms (at full scale); DC output: 3.0V, 25mV/dB

Memory:                                microSD card (included)

Measurement Time:              1s to 23h 59m 59s

Power:                                  4 x C size 1.5V batteries, External DC power: 6V, 1A

Dimensions/Weight:              13.6 x 3.9 x 2.4" (345 x 100 x 60mm)/ 33.5oz (950g)

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