---
product_id: 52133526
title: "Extech SL400 Personal Noise Dosimeter with USB Interface"
brand: "extech"
price: "C$85839"
currency: NIO
in_stock: true
reviews_count: 8
category: "Extech"
url: https://www.desertcart.ni/products/52133526-extech-sl400-personal-noise-dosimeter-with-usb-interface
store_origin: NI
region: Nicaragua
---

# USB interface for seamless data transfer Up to 999,999 data points Measures peak & frequency-weighted noise Extech SL400 Personal Noise Dosimeter with USB Interface

**Brand:** extech
**Price:** C$85839
**Availability:** ✅ In Stock

## Summary

> 🔊 Stay ahead of noise risks with precision and ease — because your hearing deserves the best!

## Quick Answers

- **What is this?** Extech SL400 Personal Noise Dosimeter with USB Interface by extech
- **How much does it cost?** C$85839 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/52133526-extech-sl400-personal-noise-dosimeter-with-usb-interface)

## 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

- • **Precision Noise Tracking:** Capture every decibel with up to 999,999 readings for unmatched accuracy.
- • **Effortless Data Management:** USB connectivity and included PC software make setup, data retrieval, and analysis a breeze.
- • **Comprehensive Sound Metrics:** Monitor sound levels including min/max, Leq, peak, and SEL to ensure full compliance.
- • **Compact & Lightweight Design:** Carry professional-grade noise dosimetry anywhere with a sleek 7-ounce device.
- • **Customizable Measurement Setup:** Tailor your noise monitoring with adjustable criterion levels, exchange rates, and thresholds.

## Overview

The Extech SL400 Personal Noise Dosimeter is a compact, lightweight device designed for professional noise exposure monitoring. It supports up to 999,999 data points, measures frequency-weighted and peak sound levels, and complies with OSHA, MSHA, DOD, ACGIH, and ISO standards. Featuring USB connectivity and user-friendly PC software, it enables precise noise surveys and effortless data analysis for workplace safety and regulatory compliance.

## Description

For employees that are exposed to loud noise, sound level monitoring is essential to determine what protective measures are required. Perform OSHA and IEC Noise accumulation surveys to determine total sound exposure over an 8-hour period. The SL400 is a compact, lightweight Dosimeter with USB interface designed to test noise exposure and provide noise surveys for compliance with OSHA, MSHA, DOD, ACGIH, and ISO standards. Includes PC software to control setup and retrieve stored events or analyze real-time measurements.

Review: Worked Great, Easy to setup - The SL400 worked great, right out of the box. There was a software CD in the package, but I had already downloaded the software for the unit. Selecting the proper standards was easy, and we were up an running in minutes.
Review: Good product, could use some added features. - Use this product in a community hall to monitor sound levels of bands and DJ's. Does a good job recording sound levels over time. The downloadable files provide a nice Excel spreadsheet graph. I dislike the fact that the meter cannot be set to start recording at a future time and stop at a future time. I dislike that a new 9V battery only last 18 hours.

## Features

- Measures frequency weighted noise exposure and peak (C, Z) sound level
- Datalog's up to 999,999 readings when used as a sound level meter with sampling times between 1 second and 24 hours
- Sound level mode: displays sound level, min/max, time-averaged sound level (Leq), peak, and sound exposure level (SEL)
- Adjustable Criterion Level, Exchange Rate and Threshold
- One user-defined measurement setup

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000N4ZU6W |
| Batteries | 1 Product Specific batteries required. |
| Best Sellers Rank | #245,745 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #116 in Sound & Noise Meters |
| Date First Available | July 12, 2016 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 7 ounces |
| Item model number | SL400 |
| Manufacturer | Extech |
| Product Dimensions | 2.6 x 1.3 x 4.2 inches |

## Images

![Extech SL400 Personal Noise Dosimeter with USB Interface - Image 1](https://m.media-amazon.com/images/I/71+zMYF7-2L.jpg)
![Extech SL400 Personal Noise Dosimeter with USB Interface - Image 2](https://m.media-amazon.com/images/I/71YSssjoHVL.jpg)
![Extech SL400 Personal Noise Dosimeter with USB Interface - Image 3](https://m.media-amazon.com/images/I/81vm9-50FrL.jpg)
![Extech SL400 Personal Noise Dosimeter with USB Interface - Image 4](https://m.media-amazon.com/images/I/81njboqAi-L.jpg)
![Extech SL400 Personal Noise Dosimeter with USB Interface - Image 5](https://m.media-amazon.com/images/I/71FSWf+vuCL.jpg)

## Questions & Answers

**Q: someone knows how to obtain the graphs of noise dosimeter meter**
A: I just down load the data files and put into Excel. Then I can produce the graphics using Excel for many different reasons. Just my way.

**Q: How many time is the guarantee?**
A: Hello, thanks for your question, all of our meters have a 2-year warranty. if you have any questions feel free to contact us on our technical support line at 866-477-3687 opt 3

**Q: Do you sale type II condensed electret microphone? I want to buy some of then to sales here in my country.**
A: No this is not a type 2 condensed microphone

**Q: Can this be set to lock the keypad to prevent accidentally pushing buttons?**
A: Dear Paul, thank you for your question. I am not showing this option available as per the Extech`s website.  Feel free to contact us with all other inquiries.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked Great, Easy to setup
*by M***E on September 16, 2019*

The SL400 worked great, right out of the box. There was a software CD in the package, but I had already downloaded the software for the unit. Selecting the proper standards was easy, and we were up an running in minutes.

### ⭐⭐⭐⭐ Good product, could use some added features.
*by D***M on September 29, 2019*

Use this product in a community hall to monitor sound levels of bands and DJ's. Does a good job recording sound levels over time. The downloadable files provide a nice Excel spreadsheet graph. I dislike the fact that the meter cannot be set to start recording at a future time and stop at a future time. I dislike that a new 9V battery only last 18 hours.

### ⭐⭐ Stay away
*by A***R on September 16, 2024*

Its very difficult to try and figure out how to use it to record TWA. Just look at something simpler. This is way over complicated.

## Frequently Bought Together

- Extech SL400 Personal Noise Dosimeter with USB Interface
- Extech 407744 94dB Sound Calibrator for 0.5" and 1" Microphones

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-21*