someone knows how to obtain the graphs of noise dosimeter meter

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.

How many time is the guarantee?

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

Do you sale type II condensed electret microphone? I want to buy some of then to sales here in my country.

No this is not a type 2 condensed microphone

Can this be set to lock the keypad to prevent accidentally pushing buttons?

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.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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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

Product ID: 52133526

💻USB interface for seamless data transfer

📊Up to 999,999 datalogs

🔊Measures peak & frequency-weighted SPL

B/.2749

Duties & taxes included

In stock

Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔊 Stay ahead of noise risks with precision and power!

MASSIVE DATA CAPACITY - Stores nearly a million readings, empowering detailed long-term noise analysis without data loss.
PRECISION NOISE MONITORING - Accurately captures peak (C, Z) and frequency-weighted sound levels for reliable exposure assessment.
COMPACT LIGHTWEIGHT DESIGN - Portable 7-ounce device fits effortlessly into any professional’s toolkit for on-the-go noise compliance.
CUSTOMIZABLE MEASUREMENT SETTINGS - Adjust criterion level, exchange rate, and threshold to tailor surveys to OSHA, IEC, and other standards.
REAL TIME RETROSPECTIVE ANALYSIS - Includes PC software for live monitoring and comprehensive post-survey data review.

The Extech SL400 Personal Noise Dosimeter is a compact, lightweight device designed for professional noise exposure monitoring. It supports up to 999,999 datalogs with adjustable settings compliant with OSHA, IEC, and other standards. Featuring a USB interface and dedicated PC software, it enables seamless data transfer and real-time analysis, making it an essential tool for workplace noise compliance and safety.

Specifications

ASIN	B000N4ZU6W
Batteries	1 Product Specific batteries required.
Best Sellers Rank	#441,533 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #196 in Sound & Noise Meters
Date First Available	July 12, 2016
Item Weight	7 ounces
Item model number	SL400
Manufacturer	Extech
Product Dimensions	2.6 x 1.3 x 4.2 inches

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