The Best Sound Level Meter

SV 971A Compact and Versatile Class 1 Sound Level Meter. Accuracy and full compliance with IEC 61672.

Smart sound level meter mobile app
Easy in Use

Simple UI and Mobile Apps

Small Size

Only 225 grams (8.20 oz)

Reliable and certificated, image of certificates
Class 1 Accuracy

ANSI/ASA S1.4 & IEC 61672

3-year warranty for hardware!

What is a Class 1 Sound Level Meter?

Discover the standards behind professional noise measurement. See how a Class 1 sound level meter meets IEC 61672 accuracy requirements and why it’s essential for precise, compliant measurements.

Watch the video to learn more about Class 1 sound level meters.

Product Highlights

24

Up to 24 hours operating time

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Self-vibration Detection​

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Class 1 Accuracy

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Auto Calibration System​

automatic calibration sequence

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Frequency analysis

1/1 or 1/3 Octave Analysis

Equipment tailored to your needs

We have the solution for you

Our meter will work well wherever precise sound measurement is important. Whether you operate in a large company, work individually, or simply want to better understand your environment.

Industry and manufacturing

Control of machine noise, compliance with health and safety standards.

Construction and infrastructure

Document sound levels in road, urban and construction projects.

Education and public institutions

Measuring acoustics in classrooms, conference rooms and libraries.

Environmental protection

Noise monitoring in parks, quiet zones, events and field studies.

Researchers, consultants, enthusiasts

Ideal for those conducting analysis, tests, audits or educational projects.

Configure your sound level meter for any application

Ensure full compliance and accurate results by requesting the optimal setup for your measurement needs. Whether it's ISO, OSHA, MSHA, ACGIH, DIN, or other standards. We will match your application with the right configuration.

Professional sound measurements made easy

power

Step 1

Power on and select Simple Mode, or use mobile App

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Step 2

Press Start to begin precise, compliant measurements

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Step 3

Download data and generate a report using built-in templates

Dedicated Software Solutions

Comprehensive software package for acoustics and occupational noise.

  • Live monitoring
  • CSV Export
  • Mobile and desktop
  • Free software updates

Trusted by experts worldwide

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Certified Quality You Can Trust​

Key features and capabilities

Class 1

IEC 61672-1 Type Approved

Single range

LAeq range from 27 to 137 dB (140 dB Peak)

Versatility

Filters A, B, C, Z, LF; Slow, Fast, Impulse

Low/High Frequencies

Frequency range 5 Hz ÷ 20 kHz

Logging

MicroSD 32 GB (up to 128 GB)

Simple UI

8 push buttons

Connectivity

USB, Bluetooth, RS 232

Precise analysis

1/1 or 1/3 Octave

Recording

Audio recording, WAV format

Statistics

L1-L99, complete histogram

Sound

SPL, LEQ, MAX, MIN, PEAK, LAV, TWA

Dose

Exchange Rate 2, 3, 4, 5, 6

Request a quote tailored to your measurement needs

Typical SV 971A pricing ranges between €2,500 and €5,000, depending on local taxes, duties, and selected accessories.












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