---
product_id: 325362758
title: "Extech SL400 Personal Noise Dosimeter with USB Interface | Noise exposure and peak (C,Z) SPL, datalogs to 999999 readings, Leq/SEL, OSHA/IEC, adjustable criterion, USB"
brand: "extech"
price: "B/.3155"
currency: PAB
in_stock: true
reviews_count: 5
category: "Extech"
url: https://www.desertcart.com.pa/products/325362758-extech-sl400-personal-noise-dosimeter-with-usb-interface-noise-exposure
store_origin: PA
region: Panama
---

# Logs up to 999,999 readings Measures frequency-weighted noise & peak SPL USB interface for seamless data transfer Extech SL400 Personal Noise Dosimeter with USB Interface | Noise exposure and peak (C,Z) SPL, datalogs to 999999 readings, Leq/SEL, OSHA/IEC, adjustable criterion, USB

**Brand:** extech
**Price:** B/.3155
**Availability:** ✅ In Stock

## Summary

> 🔊 Don’t just measure noise—master it with precision and power.

## Quick Answers

- **What is this?** Extech SL400 Personal Noise Dosimeter with USB Interface | Noise exposure and peak (C,Z) SPL, datalogs to 999999 readings, Leq/SEL, OSHA/IEC, adjustable criterion, USB by extech
- **How much does it cost?** B/.3155 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/325362758-extech-sl400-personal-noise-dosimeter-with-usb-interface-noise-exposure)

## 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

- • **Compact & Lightweight:** Portable design (just 200g) fits perfectly into your professional toolkit for on-the-go noise surveys.
- • **Customizable Settings:** Adjust criterion level, exchange rate, and threshold to tailor measurements to your exact needs.
- • **Massive Data Capacity:** Capture nearly a million readings for comprehensive noise analysis over extended periods.
- • **User-Friendly Interface:** One user-defined setup and included PC software make real-time monitoring and data retrieval effortless.
- • **Precision Noise Monitoring:** Stay OSHA & IEC compliant with accurate sound exposure and peak level measurements.

## Overview

The Extech SL400 Personal Noise Dosimeter is a compact, lightweight device designed for professional noise exposure monitoring. It supports OSHA, IEC, and other standards, logs up to 999,999 readings, and features adjustable measurement settings. With a USB interface and included PC software, it enables easy setup, real-time monitoring, and comprehensive data analysis for workplace noise 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: Excelente equipo para realizar mediciones - Es una muy buena compra.
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.

## 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 |
| Best Sellers Rank | #96,512 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #62 in Sound Level Meters |
| Item model number | SL400 |
| Manufacturer | Extech |
| Product Dimensions | 6.6 x 3.3 x 10.67 cm; 199.58 g |

## Images

![Extech SL400 Personal Noise Dosimeter with USB Interface | Noise exposure and peak (C,Z) SPL, datalogs to 999999 readings, Leq/SEL, OSHA/IEC, adjustable criterion, USB - Image 1](https://m.media-amazon.com/images/I/71+zMYF7-2L.jpg)
![Extech SL400 Personal Noise Dosimeter with USB Interface | Noise exposure and peak (C,Z) SPL, datalogs to 999999 readings, Leq/SEL, OSHA/IEC, adjustable criterion, USB - Image 2](https://m.media-amazon.com/images/I/71YSssjoHVL.jpg)
![Extech SL400 Personal Noise Dosimeter with USB Interface | Noise exposure and peak (C,Z) SPL, datalogs to 999999 readings, Leq/SEL, OSHA/IEC, adjustable criterion, USB - Image 3](https://m.media-amazon.com/images/I/81vm9-50FrL.jpg)
![Extech SL400 Personal Noise Dosimeter with USB Interface | Noise exposure and peak (C,Z) SPL, datalogs to 999999 readings, Leq/SEL, OSHA/IEC, adjustable criterion, USB - Image 4](https://m.media-amazon.com/images/I/81njboqAi-L.jpg)
![Extech SL400 Personal Noise Dosimeter with USB Interface | Noise exposure and peak (C,Z) SPL, datalogs to 999999 readings, Leq/SEL, OSHA/IEC, adjustable criterion, USB - 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

### ⭐⭐⭐⭐⭐ Excelente equipo para realizar mediciones
*by C***N on 17 February 2021*

Es una muy buena compra.

### ⭐⭐⭐⭐⭐ Worked Great, Easy to setup
*by M***E on 16 September 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 29 September 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.

## Frequently Bought Together

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

---

## 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.com.pa/products/325362758-extech-sl400-personal-noise-dosimeter-with-usb-interface-noise-exposure](https://www.desertcart.com.pa/products/325362758-extech-sl400-personal-noise-dosimeter-with-usb-interface-noise-exposure)

---

*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-07-24*