---
product_id: 102124935
title: "407730 40 to 130 Decibel Digital Sound Level Meter"
brand: "extech"
price: "฿18089"
currency: THB
in_stock: true
reviews_count: 5
category: "Extech"
url: https://www.desertcart.co.th/products/102124935-407730-40-to-130-decibel-digital-sound-level-meter
store_origin: TH
region: Thailand
---

# 0.1 dB resolution ±2 dB accuracy 40-130 dB range 407730 40 to 130 Decibel Digital Sound Level Meter

**Brand:** extech
**Price:** ฿18089
**Availability:** ✅ In Stock

## Summary

> 🔊 Measure Like a Pro, Hear the Difference!

## Quick Answers

- **What is this?** 407730 40 to 130 Decibel Digital Sound Level Meter by extech
- **How much does it cost?** ฿18089 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/102124935-407730-40-to-130-decibel-digital-sound-level-meter)

## 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

- • **Pinpoint Accuracy:** ±2 dB accuracy ensures reliable data for critical sound assessments and compliance checks.
- • **Ultra-Fine Resolution:** 0.1 dB resolution captures subtle sound variations, giving you detailed insights.
- • **Instant Visual Feedback:** Fast-responding analog bar graph lets you monitor sound fluctuations in real-time.
- • **Precision You Can Trust:** Accurately measures sound levels from 40 to 130 dB, perfect for professional noise monitoring.
- • **Ready to Go Out of the Box:** Includes 4 AAA batteries and tripod mount screw for hands-free, on-the-go measurements.

## Overview

The Extech 407730 Digital Sound Level Meter offers a professional-grade 40 to 130 dB measurement range with ±2 dB accuracy and 0.1 dB resolution. Featuring a fast analog bar graph for real-time sound monitoring, it comes ready with batteries and tripod mounting options, making it an essential tool for precise noise level assessments in industrial, scientific, and entertainment settings.

## Description

Extech 407730 40 to 130 Decibel Digital Sound Level Meter : desertcart.in: Industrial & Scientific

Review: Grosse déception avec ce Sonomètre. Les fonctionnalités de base sont au rendez-vous. La précision est correcte. Et il y a même quelques bonnes surprises avec une vis de calibration, et une vis de fixation pour montage sur trépied. Si vous voulez utiliser ce sonomètre en utilisation de base "à main levée", très bien. Mais alors, pourquoi cette mauvaise note? Parce que j'avais acheté ce sonomètre spécialement pour relier la sortie analogique à un oscilloscope afin de pouvoir tracer les variations de niveau sonore. Hélas, à la sortie "AC", le sonomètre fournit un signal totalement inutilisable. À titre d'exemple, j'ai joint à ce commentaire un graphique montrant ce que je lis lorsque je balance un signal avec une amplitude de 100dB SPL. Si quelqu'un peut interpréter ça, merci de me le dire. À moins tout simplement que mon exemplaire ne soit défectueux? Bref, je renvoie le produit dés que possible...
Review: I have an older DB meter that does straight readings. I was looking for something that I could use for averaging and finding peak volumes so I gave this a try. It's not at all expensive, is easy to use, and seems to work correctly. I have a high end calibrated source for my older meter, and when I tried it on the Extech it read exactly the correct value. So in a static situation the meter is very accurate. While I don't have any way to test it for peak or average readings, I'm guessing that it's probably pretty darn close. I plan on using this for measuring shop machine noise levels, and also for monitoring sound levels for the PA for a jazz band I play in. If you need a DB meter, this one will do a good job at a great price.

## Features

- Measures 40 to 130db on digital display
- 2Db accuracy with 0.1Db resolution
- Fast responding analogue bar graph

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000EWY67W |
| Are batteries included? | Yes |
| Batteries | 4 AAA batteries required. (included) |
| Best Sellers Rank | #131,857 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #156 in Sound Measurement |
| Brand | Extech |
| Customer Reviews | 4.6 4.6 out of 5 stars (217) |
| Date First Available | 11 August 2012 |
| Hardware Interface Type | 3.5mm Audio |
| Item Dimensions LxWxH | 22.9 x 4.3 x 5.6 Centimeters |
| Item Height | 2.2 Inches |
| Item Weight | 230 g |
| Item Width | 1.7 Inches |
| Item model number | 407730 |
| Lithium Battery Packaging | Batteries packed with equipment |
| Manufacturer | Extech |
| Model number | 407730 |
| Number of Memory Sticks | 1 |
| Product Dimensions | 22.86 x 4.32 x 5.59 cm; 230 g |
| Voltage | 9 Volts |

## Product Details

- **Amperage:** 300 Milliamps
- **Brand:** Extech
- **Controls Type:** Knob
- **Hardware Interface:** 3.5mm Audio
- **Voltage:** 9 Volts

## Images

![407730 40 to 130 Decibel Digital Sound Level Meter - Image 1](https://m.media-amazon.com/images/I/717vH6r1VdL.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.

## Customer Reviews

### ⭐⭐ Review
*by S***X on 28 February 2020*

Grosse déception avec ce Sonomètre. Les fonctionnalités de base sont au rendez-vous. La précision est correcte. Et il y a même quelques bonnes surprises avec une vis de calibration, et une vis de fixation pour montage sur trépied. Si vous voulez utiliser ce sonomètre en utilisation de base "à main levée", très bien. Mais alors, pourquoi cette mauvaise note? Parce que j'avais acheté ce sonomètre spécialement pour relier la sortie analogique à un oscilloscope afin de pouvoir tracer les variations de niveau sonore. Hélas, à la sortie "AC", le sonomètre fournit un signal totalement inutilisable. À titre d'exemple, j'ai joint à ce commentaire un graphique montrant ce que je lis lorsque je balance un signal avec une amplitude de 100dB SPL. Si quelqu'un peut interpréter ça, merci de me le dire. À moins tout simplement que mon exemplaire ne soit défectueux? Bref, je renvoie le produit dés que possible...

### ⭐⭐⭐⭐⭐ Review
*by J***R on 18 June 2017*

I have an older DB meter that does straight readings. I was looking for something that I could use for averaging and finding peak volumes so I gave this a try. It's not at all expensive, is easy to use, and seems to work correctly. I have a high end calibrated source for my older meter, and when I tried it on the Extech it read exactly the correct value. So in a static situation the meter is very accurate. While I don't have any way to test it for peak or average readings, I'm guessing that it's probably pretty darn close. I plan on using this for measuring shop machine noise levels, and also for monitoring sound levels for the PA for a jazz band I play in. If you need a DB meter, this one will do a good job at a great price.

### ⭐⭐⭐⭐⭐ Review
*by J***T on 12 June 2025*

Got this product for the restaurant i work at. We were having issues with noise complaints. This works perfectly!!!

## Frequently Bought Together

- Extech 407730 Digital Sound Level Meter 40-130dB
- Extech LT300 Light Meter

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-10*