Extech 407790A Real Time Octave Band Analyzer

Extech 407790A Real Time Octave Band Analyzer:

Additionally, this apparatus is employed in scientific research as one of the tools for measuring sound levels in several disciplines, including physics, sound engineering, sound psychology, etc.


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Extech 407790A Real-Time Octave Band Analyzer

Real-Time Octave Band Analyzer(Extech 407790A) is a sound measuring device used to measure sound level in octave bands. For this, it uses FFT (Fast Fourier Transform) technology and provides the possibility of measuring the sound level in different octave bands in real-time.

product overview

On a large 3.5″ 320×240 TFT color backlit LCD, Extech’s Type 2 Integrating Sound Level Meter with Octave and 1/3 Octave Band Real Time is shown.

functions Extech 407790A Real Time Octave Band Analyzer

Real-Time Octave Band Analyzer is incredibly easy to use. The instrument begins monitoring the sound level in several octave ranges when the start button is pressed. The gadget screen shows the measured findings. This device may be connected to a computer, which allows for more accurate data processing and reporting by sending the measured data to the computer.


Various industries, the environment, professional health, acoustics, scientific research, etc. all employ real-time octave band analyzers. This instrument is employed in the sphere of industry to gauge the volume of engines, machines, and other loud objects, as well as the sound of electrical gadgets.

Extech 407790A Real Time Octave Band Analyzer features

  • Certifications: CE
  • Dimensions: 13.6 × 3.9 × 2.4″ (345 × 100 × 60mm)
  • Power: 4 × C (1.5V) batteries / external supply 6V DC, 1A
  • Warranty: 2 years
  • Weight: 33.5oz (950g)
    20 dB to 90 dB, 20 dB to 100 dB, 20 dB to 110 dB, 30 db to 120 db, and 40 db to 130 db
  • The 3.5″ (320×240) TFT color LCD multi-function display shows Leq, LE, Lmax, Lmin, Lp, L05, L10, L50, L90, and L95.
  • Customizable to your needs For measurements in enclosures and other remote places, an optional microphone extension cable is available (407764-EXT).

Extech 407790A Real Time Octave Band Analyzer specifications

  • Analog Output: AC output: 1 Vrms (at full scale); DC output: 3.0V, 25mV/dB
  • Frequency Bandwidth: 25Hz ~ 10kHz
  • Memory: microSD card (included)
  • Microphone: Condenser, 0.52″ (13.2mm)
  • Response Time: Fast, Slow, 10ms (t), I
  • Sound Range (dB): 20 to 90dB, 20 to 100dB, 20 to 110dB, and 30 to 120dB, 40 to 130dB
  • Sound Range (dB) Basic Accuracy: ±1.5dB (ref 94dB @ 1kHz)
  • Weighting: A, C, and Z
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EXTECH meters and testers help you ensure uptime, maximize productivity and verify compliance. Whether used as a component of an effective predictive maintenance program or as a key tool for a rapid response repair team, EXTECH instruments are the meters of choice for professionals who need to solve problems. Extech continues to build brand loyalty and trust among electrical contractors, industrial mechanics, facilities maintenance, HVAC/R technicians, sustainability & safety directors, public works managers, building & restoration contractors, and more. Extech products are backed with a standard full 2-year warranty, and select products up to 3 years, against defects.