Added to cart

Go to cart

Your order qualifies for free 2-day shipping and easy returns

Shipping & Returns Policy

Real Time Octave Band Analyzer

Extech 407790A

Model: 407790A Go to Product Support
product image

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.

Product Shipping FREE Shipping
Product Returns Shipping & Returns
Sales Contact Contact Sales
  • 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)

Contact Sales

Want more information on this product?

Call +1 (866) 477-3687 to speak with a knowledgeable specialist.

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)
Related Documents
Export Restrictions

Export Restrictions

The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.

Extech 407790A - Model: 407790A

Change Selection