---
product_id: 52133525
title: "Extech 407790A Real Time Octave Band Analyzer"
brand: "extech"
price: "HK$79794"
currency: HKD
in_stock: true
category: "Extech"
url: https://www.desertcart.hk/products/52133525-extech-407790a-real-time-octave-band-analyzer
store_origin: HK
region: Hong Kong
---

# microSD data storage & PC transfer 100dB dynamic range precision A, C, Z weighting with Fast/Slow response Extech 407790A Real Time Octave Band Analyzer

**Brand:** extech
**Price:** HK$79794
**Availability:** ✅ In Stock

## Summary

> 🎧 Tune into precision, don’t miss a decibel!

## Quick Answers

- **What is this?** Extech 407790A Real Time Octave Band Analyzer by extech
- **How much does it cost?** HK$79794 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/52133525-extech-407790a-real-time-octave-band-analyzer)

## Best For

- extech enthusiasts

## Why This Product

- Trusted extech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Certified Reliability:** Meets ANSI and IEC Type 2 standards, ensuring your measurements are trusted and industry-compliant.
- • **Seamless Data Mastery:** Effortlessly transfer and analyze your sound data on PC with included Windows-compatible software and USB cable.
- • **Ready for Any Environment:** Comes complete with microphone windscreen, batteries, and rugged case—built for fieldwork and lab precision alike.
- • **Versatile Frequency Coverage:** Capture sound from 25Hz to 10kHz with real-time octave and 1/3 octave band analysis for professional-grade insights.
- • **Precision that Speaks Volumes:** Experience ultra-accurate sound analysis with ±0.5% measurement accuracy across a massive 100dB range.

## Overview

The Extech 407790A is a professional-grade real-time octave band analyzer featuring a wide 100dB dynamic range, ±0.5% accuracy, and frequency response from 25Hz to 10kHz. It includes a large color backlit LCD, microSD storage, and Windows-compatible software for seamless data transfer and analysis. Certified to ANSI and IEC Type 2 standards, it’s a complete, portable solution with all accessories for precise sound measurement in any setting.

## Description

407790A is a Real Time Octave Band Analyzer. 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 colour backlit LCD. Wide 100dB range of 30 to 130dB. Stores readings on microSD card. Complete with Windows compatible software, USB cable, 4 x C batteries, microphone wind screen, mini screwdriver, 120V AC adaptor, and case.

## Features

- Precise linearity over wide range (100dB)
- Transferred data to a PC to be analyzed using software and cable provided
- A, C and Z weighting with Fast or Slow response
- 25Hz to 10kHz frequency response
- Meets ANSI and IEC Type 2 standards

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Extech |
| Part number | 407790A |
| Item Weight | 953 g |
| Product Dimensions | 9.91 x 6.1 x 34.54 cm; 952.54 g |
| Batteries | 4 C batteries required. (included) |
| Item model number | 407790A |
| Colour | Green |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Measurement System | Metric |
| Measurement Accuracy | +/-.5% |
| Coverage | C |
| Included components | 1 x Complete with Windows compatible software, USB cable, 4 x C batteries, microphone wind screen, mini screwdriver, 120V AC adaptor, and case. |
| Batteries included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |

## Images

![Extech 407790A Real Time Octave Band Analyzer - Image 1](https://m.media-amazon.com/images/I/51v4hX7AtKL.jpg)

## Questions & Answers

**Q: What is frequency range for this device?**
A: The SL510 has a frequency range from 31.5Hz to 8KHz.

**Q: does make 20hz to 20khz readings?**
A: Thank you so much for your interest in our products. The 407032 model has a measurement bandwidth between 31.5Hz to 8KHz. Please check all the specifications of this meter here: http://www.extech.com/products/resources/407732_UM-en.pdf

**Q: what's in the box?**
A: Hello Checker,The 407760 comes with software, tripod, USB extension cable, windscreen, and 3.6-Volt Lithium battery.Best Regards

**Q: The model presented says 'Extech 407730' but in the description and image apears Extech 407732, which you are sending?**
A: I am not sure where 407730 is appearing besides the comparison table between the different models. For simplicity, this page is for the Extech 407732. You would get the item in the pictures.

## Frequently Bought Together

- Extech 407790A Real Time Octave Band Analyzer
- Extech LT300 Light Meter

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hk/products/52133525-extech-407790a-real-time-octave-band-analyzer](https://www.desertcart.hk/products/52133525-extech-407790a-real-time-octave-band-analyzer)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-21*