PTB SV977D
10 April 2025

SVANTEK SV 977D Receives Type Approval from PTB

We are pleased to announce that the SVANTEK SV 977D Class 1 Sound Level Meter has officially received type approval from the Physikalisch-Technische Bundesanstalt (PTB) in Germany.

We are pleased to announce that the SVANTEK SV 977D Class 1 Sound Level Meter has officially received type approval from the Physikalisch-Technische Bundesanstalt (PTB) in Germany.

PTB certification is one of the most prestigious and internationally recognized validations of measurement accuracy and compliance. By meeting the stringent requirements of IEC 61672-1, the SV 977D has demonstrated superior performance in terms of frequency response, dynamic range, directional characteristics, and stability under varying environmental conditions.

Why This Matters

  • Trusted Data Accuracy: Type approval guarantees that the SV 977D provides traceable and repeatable measurements that meet the highest standards of precision.
  • Regulatory Compliance: In many countries, official noise measurements for legal or regulatory purposes must be conducted using PTB-approved Class 1 instrumentation.
  • Global Recognition: PTB certification ensures that your measurements are accepted internationally, supporting use in cross-border environmental assessments, industrial noise monitoring, and research applications.

Confidence for Professionals

For acoustic consultants, environmental agencies, health and safety professionals, and researchers, this certification provides peace of mind that the SV 977D is ready for the most demanding and regulated applications. The PTB approval further strengthens SVANTEK’s reputation for delivering high-quality, reliable measurement solutions.

See also:

SvanLINK: Noise Control Software | NEW

Ideal Applications
The application of SvanLINK extends across many different environments. It can be used in gyms, shooting ranges, and industrial facilities, as well as for maintaining high acoustic quality in schools and public offices. Below are some of the most common examples of ideal applications:

🎶 Live event monitoring — concerts, conferences, and public gatherings.
🌆 Urban noise management — integration within smart city projects.
🏭 Occupational noise control — clear, color-coded displays for workplaces.
🚨 Live noise monitoring and control — real-time alerts and automated thresholds.
🏢 Indoor noise — offices, malls, hospitals, schools, and public offices.

Why SvanLINK stands out:

  • Live monitoring & public display: numerical, graphical and colour-coded views (green / yellow / red) for clear communication on TVs and industrial screens.
  • Open API & system integration: push live data into existing IT systems or show it on remote endpoints.
  • Flexible deployment: works on Windows, Linux and macOS; available as SD 312 (indoor) and SD 310 (outdoor) controller.
  • Remote access via SvanNET: monitor devices and analyse measurements in the cloud when networked.
  • Broad device compatibility: SV 971A, SV 973A, SV 977D, SVAN 979, SV 303, SV 307A, SV 200A.

SvanNET AI – Real-time Noise Source Identification

How it Works

Using advanced AI algorithms, SvanNET analyzes audio recordings in real time, classifies detected sounds, and provides confidence levels for each result. This eliminates the need for manual listening, saving time and delivering deeper insights into environmental noise events.

Key Features

  • Real-time classification of environmental noise sources

  • Confidence levels for each detected sound

  • Dominant sound class detection with additional secondary classes for more context

  • Seamless integration into monitoring projects worldwide

  • Improved reliability for day-to-day environmental monitoring

Proven in Beta

  • Over 150 active users tested the AI functionality

  • More than 20% of SvanNET projects adopted it during Beta

  • Feedback from the community enhanced accuracy, classification breadth, and reliability

Choosing Your Class 1 Sound Level Meter NEW ARTICLE

Whether you need maximum portability, built-in vibration support, or advanced analysis tools, our clear and practical guide breaks down everything you need to know to make the right choice. You’ll learn how to match features, form factor, and performance to your specific application—and why not all technical specs are created equal. Visit the SVANTEK Academy to explore the full article and choose your sound level meter with confidence.