Real Time Octave Band Analyzer

Extech 407790A

Model: 407790A Go to Product Support
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Extech’s Type 2 Integrating Sound Level Meter with Octave and 1/3 Octave Band Real Time is displayed on a large 3.5" 320x240 TFT color backlit LCD.

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  • Wide Measurement in 5 Ranges

    20 to 90dB, 20 to 100dB, 20 to 110dB, and 30 to 120dB, 40 to 130dB

  • Multi-Function Display

    3.5" (320x240) TFT color LCD with backlight feature displays Leq, LE, Lmax, Lmin, Lp, L05, L10, L50, L90, L95

  • Customizable to Your Needs

    Optional microphone extension cable for measurements in enclosures and other remote locations (407764-EXT)

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General Specifications
Analog Output
AC output: 1 Vrms (at full scale); DC output: 3.0V, 25mV/dB
Frequency Bandwidth
25Hz ~ 10kHz
microSD card (included)
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)
A, C, and Z
Additional Details
13.6 × 3.9 × 2.4" (345 × 100 × 60mm)
4 × C (1.5V) batteries / external supply 6V DC, 1A
2 years
33.5oz (950g)

Extech 407790A - Model: 407790A

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